SOLUTION: I tried dividing by nine on both sides and it got me to 4x^2 - 2x - 13/2 = 0. But I don't know what to do next. Find the dimensions: *triangle* base of (2x+1) and height of (2x-

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: I tried dividing by nine on both sides and it got me to 4x^2 - 2x - 13/2 = 0. But I don't know what to do next. Find the dimensions: *triangle* base of (2x+1) and height of (2x-      Log On


   

Question 1135155: I tried dividing by nine on both sides and it got me to 4x^2 - 2x - 13/2 = 0. But I don't know what to do next.
Find the dimensions: *triangle* base of (2x+1) and height of (2x-2)
Please help.
Thanks in advance.
Found 2 solutions by josgarithmetic, ikleyn:
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
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I tried dividing by nine on both sides and it got me to 4x^2 - 2x - 13/2 = 0. But I don't know what to do next.
Find the dimensions: *triangle* base of (2x+1) and height of (2x-2)
Please help.
Thanks in advance.
-----

Why the 9? Where did that come from? Was 9 the value for the area?


If area is 9, then
%281%2F2%29%282x%2B1%29%282x-2%29=9
%282x%2B1%29%282x-2%29=2%2A9
4x%5E2-2x-2=18
4x%5E2-2x=20
%281%2F2%29%284x%5E2-2x%29=%281%2F2%29%2820%29
2x%5E2-x=10
2x%5E2-x-10=0
Can you finish from here? Either try factorizing or use general solution of quadratic equation.

Answer by ikleyn(52814) About Me  (Show Source):
You can put this solution on YOUR website!
.

In a way on how the problem is formulated in your post, it can not be solved.

If you want to get a solution and a help, print the problem formulation "word-in-word" from your source.


It is the only way to stay on solid ground.