2. (a+2b)(2+b)-(2a+2b)(a-5)-3a^2-12b^2+2)=
3. 5x-7=7x-(3/2 -x)+
2007-01-04 03:49:05 · 9 answers · asked by gabrielenebroski 3 in Science & Mathematics ➔ Mathematics
Tanya>>>thank u
2007-01-04 17:29:47 · answer #1 · answered by CottonMusk_095 2 · 0⤊ 2⤋
Problem 1
(5x + 2) + (5x + 3)2 - (x - 1)3 = 0
(5x + 2) + (10x + 6) - (3x - 3) = 0
5x + 2 + 10x + 6 - 3x + 3 = 0
15x - 3x + 11 = 0
12x + 11 = 0
12x + 11 - 11 = 0 - 11
12x = - 11
12x / 12 = - 11 / 12
x = - 11 / 12
The answer is x = - 11/12
Insert the x value into the equation
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Check
(5x + 2) + (5x + 3)2 -(x - 1)3 = 0
[5(-11/12) + 2] + [5(- 11/12) + 3]2 - (- 11/12 - 1)3 = 0
[ - 55/12 + 2] + [- 55/12 + 3]2 - ( - 33/12 - 3) = 0
[- 55/12 + 24/12] + [ -110/12 + 6] - (- 33/12 - 36/12) = 0
[- 31/12 } + [- 110/12 + 72/12] - (- 69/12) = 0
[- 31/12] + [- 38/12] + 69/12 = 0
- 31/12 - 38 / 12 + 69/12 = 0
- 69/12 + 69/12 = 0
0 = 0
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2007-01-04 15:59:54 · answer #2 · answered by SAMUEL D 7 · 0⤊ 0⤋
1. (5x+2) + 10x + 6 - 3x +3 = 0
12x + 11 = 0
12x = -11
x = -11/12
2. You didn't finish the equation to be analyzed. There is no end to the equation.
3. You also didn't finish this equation.
Those are the best answers you will get based upon what you have written.
2007-01-04 11:54:14 · answer #3 · answered by Christopher L 3 · 0⤊ 0⤋
1)
5x + 2 + 10x + 6 - 3x + 3 (that 3 is positive negative-negative is positive)
15x - 3x + 11
12x + 11
2) FOIL method
2a + ab + 4b + 2b^2 - 1( 2a^2 -10a + 2ab - 10b) - 3a^2...
(seems like the text is cut off but this is the start)
3) you didn't type the whole question
2007-01-04 11:54:17 · answer #4 · answered by Mario G 2 · 0⤊ 0⤋
1. (5x+2)+(5x+3)2-(x-1)3=?
5x+2+10x+6-3x+3=
12x+11
2. (a+2b)(2+b)-(2a+2b)(a-5)-3a^2-...
What is the full question?
3. 5x-7=7x-(3/2 -x)+
Plus what? What is the full question?
2007-01-04 11:53:13 · answer #5 · answered by Steve A 7 · 0⤊ 0⤋
1.
= 5x+2+10x+6-3x+3
= (5+10-3)x+(2+6+3)
= 12x+9
and i dont understand what is the question
2007-01-04 11:53:46 · answer #6 · answered by HuMaN being 2 · 0⤊ 0⤋
(5x+2)+(10x+6)-(3x-3)=
5x+10x-3x+2+6-(-3)=
12x+11+
12x= -11
x=-11/12
your other ones have are incomplete unless you made a mistake
2007-01-04 11:54:01 · answer #7 · answered by travelguruette 6 · 0⤊ 0⤋
use PEMDAS -- Please Excuse My Dear Aunt Sally to figure this out... Parenthesis, exponents, multiplication, division, addition and subtraction....
problem 1
(5x+2)+(5x+3)2-(x-1)3=
(5x+2)+(10x+6)-(3x-3)=
5x+10x-3x+2+6-3
12x+5
2007-01-04 11:54:18 · answer #8 · answered by Snoopy 5 · 0⤊ 2⤋
this equation is not complete so i can not aswer it
2007-01-04 11:51:38 · answer #9 · answered by liza 2 · 0⤊ 0⤋