SOLUTION: Please solve the following equation by using factors(please do not use the quadratic formula) (2x-5)(x-2)=15 Thank you

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: Please solve the following equation by using factors(please do not use the quadratic formula) (2x-5)(x-2)=15 Thank you      Log On


   

Question 359153: Please solve the following equation by using factors(please do not use the quadratic formula)
(2x-5)(x-2)=15
Thank you
Found 2 solutions by ewatrrr, Fombitz:
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi,

*Note: in order to slove by factoring, factors must = 0

(2x-5)(x-2)=15

2x^2 -9x + 10 = 15

2x^2 -9x -5 = 0

(2x +1)(x -5) = 0

(2x +1)=0

x = (-1/2)

(x -5)= 0

x = 5

Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
%282x-5%29%28x-2%29=15
2x%5E2-4x-5x%2B10=15
2x%5E2-9x-5=0
%282x%2B1%29%28x-5%29=0
Two solutions:
2x%2B1=0
2x=-1
highlight%28x=-1%2F2%29
.
.
.
x-5=0
highlight%28x=5%29