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After I used cross products on a ratio, I got this answere:
t² + t - 6 = 2t

What do I do next?

2006-12-09 04:39:33 · 7 answers · asked by Anonymous in Science & Mathematics Mathematics

7 answers

Just solve for t using factorization:

t² - t - 6 = 0
(t - 3) (t +2) = 0

so t = 3 or t = -2

2006-12-09 04:44:16 · answer #1 · answered by euclidjr 2 · 0 0

I assume you want to find t
you have t^2 + t - 6 = 2t

make the right side 0 by subtracting 2t from both sides.
then you have

t^2 - t - 6 = 0

factor it...

(t-3) (t+2) = 0

you know what? t-3 = 0 or t+2 = 0

then solve for t!

2006-12-09 04:45:47 · answer #2 · answered by Kohaku 2 · 0 0

t² + t - 6 = 2t

t² + t - 6 - t = 2t - t

t² - 6 = t

t² - 6 - t = t - t

t² - t - 6 = 0

(t - 3)(t + 2)

(t - 3)(t + 2) = t² - 3t + 2t - 6 = t² - t - 6

The answer is x = 3 and x = - 2

Insert the x value into the equation

- - - - - - - - - - - - - - - - - - - - - - -

Check

x = 3

t² + t - 6 = 2t

(3)² + 3 - 6 = 2(3)

9 + 3 - 6 = 6

12 - 6 = 6

6 = 6
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Check

x = - 2

t² + t - 6 = 2t

(- 2)² + (- 2) - 6 = 2(- 2)

4 - 2 - 6 = - 4

4 - 8 = - 4

- 4 = - 4
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Roots

t = 3

t = - 2

- - - - - - - -s-

2006-12-09 06:02:17 · answer #3 · answered by SAMUEL D 7 · 0 0

t² - t - 6 = 0

now factor it to:

(t + 2)*(t - 3) = 0

one or both of the expressions in parenthesis must be zero to make the entire expression true so:
(t + 2) = 0 and/or (t - 3) = 0
t = -2 and/or t = 3

so t = -2 and/or 3

2006-12-09 04:45:18 · answer #4 · answered by Andy M 3 · 0 0

hmm, thats only one variable, t, right? If so, subtract 2t from both sides.

t² - t - 6 = 0

Then factor.

(t - 3)(t + 2)=0

That means t can either equal 3 or -2.

2006-12-09 04:45:00 · answer #5 · answered by dgamer5000 1 · 0 0

t^2 + t - 6 = 2t
t^2 - 6 = t
t^2 = t + 6
t = sqrt(t + 6)

2006-12-09 04:43:27 · answer #6 · answered by thejackallhaslanded 2 · 0 0

if a/b=c/d, then ad=bc here, x^2+2x=15 so x^2+2x-15=0 (x-3)(x+5)=0 then,x=3 & x=-5 God bless you.

2016-05-22 23:02:45 · answer #7 · answered by ? 4 · 0 0

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