Factor and use zero property rule
Find two numbers that multiply to 48 and add to 26
1*48
2*24
3*16
4*12
6*8 . . .
it is 24 and 2
(x-24) (x-2) = 0
x=24 or x=2
2007-04-30 19:33:15
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answer #1
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answered by Anonymous
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There are a number of different ways. If you have a graphing calculator, I suggest plotting the equation and using the calculator to find the zeroes. Those are the solutions of x. If not, you'll need to use the quadratic formula, which is
x = [-b +/- sqrt(b^2 - 4ac)] / 2a
For your equation,
a = 1
b = -26
c = 48
x = [26 +/- sqrt(26^2 - 4(1)(48))] / 2(1)
x = (26 +/- 22) / 2
x = 26 + 22 / 2
AND
x = 26 - 22 / 2
x = 2 and 24
You can also factor the equation:
(1) Find two factors of 48 that when combined, equal 26.
Those factors are 24 and 2
x^2 - 26x + 48 = 0
x^2 - 24x - 2x + 48 = 0
(x^2 - 24x) - (2x - 48) = 0
x(x - 24) - 2(x - 24) = 0
(x - 2)(x - 24) = 0
x - 2 = 0
x =2
x - 24 = 0
x = 24
The solutions are 2 and 24.
2007-04-30 19:41:20
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answer #2
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answered by mwebbshs 3
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Factor and use zero property rule
Find two numbers that multiply to 48 and add to 26
1*48
2*24
3*16
4*12
6*8 . . .
it is 24 and 2
Now factorise them:
Use completing the square or factorization.
x^2 - 26x + 48 = 0
(x-24)(x-2) = 0
x=24 or x=2
therefore x-24 = 0 or x-2 = 0, so x = 2 or 24.
2007-04-30 19:40:26
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answer #3
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answered by JAY BHARAT THAKKER 2
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Use completing the square or factorization.
x^2 - 26x + 48 = 0
(x-24)(x-2) = 0
x=24 or x=2
2007-04-30 19:35:22
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answer #4
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answered by Winter Angel 2
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You can use the quadratic formula, and can also factor this polynomial to get the zeros.
Factoring yields: x^2 - 26x +48 = (x - 24)(x - 2)
So, (x - 24)(x - 2) = 0 implies either x = 24, or x = 2. You can substitute either 24 or 2 into your equation and see that both are solutions.
2007-04-30 19:36:59
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answer #5
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answered by Mick 3
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This is a quadratic equation and the first thing you have to do is factor the equation.
x^2 - 26x + 48 = 0
(x - 24)(x - 2) = 0
x = 24, x = 2
2007-04-30 19:37:29
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answer #6
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answered by Anonymous
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Fill interior the criteria in line with what you be attentive to: The x^2 coefficient is one so fill in an x in each and each element: (x +- ??)(x +- ??) = 0 simply by fact the 40 8 is valuable, the two indications interior the criteria are a similar. simply by fact the x term has a damaging coefficient, the two indications could be minus indications: (x - ??)(x - ??) = 0 Now all you like are 2 factors of 40 8 which upload as much as 26. The numbers 2 and 24 meet the two standards: (x - 2)(x - 24) = 0 x = 2 and x = 24
2016-12-10 16:08:56
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answer #7
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answered by Anonymous
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Look for factors of 48 that add to 26: they are 24 and 2.
So we factorise as (x-24)(x-2) = 0
and therefore x-24 = 0 or x-2 = 0, so x = 2 or 24.
2007-04-30 19:34:08
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answer #8
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answered by Scarlet Manuka 7
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x -------- 24
x -------- 2 ( factorise )
___________
x^ 2 ------ 48
( x - 24 ) ( x - 2 ) = x^2 - 26x + 48
x - 24 = 0 x - 2 = 0
x = 24 or x = 2
Sorry, i don't know how to explain.
2007-04-30 19:43:15
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answer #9
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answered by Punk Lover 3
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(x-24)(x-2)=0 implies x=24 or 2
2007-04-30 19:33:52
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answer #10
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answered by DeadLuke 2
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