SOLUTION: I need help solving x^2-7x+12=0 thank u!

Algebra ->  Test -> SOLUTION: I need help solving x^2-7x+12=0 thank u!      Log On


   

Question 76365: I need help solving x^2-7x+12=0 thank u!
Answer by chitra(359) About Me  (Show Source):
You can put this solution on YOUR website!
The given expression is:

+x%5E2+-+7x+%2B+12+=+0+


The last term is 12 and it can be factored as 3 * 4

Hence, the expression can be written as:

+x%5E2+-+4x+-+3x+%2B+12+=+0+

Grouping the terms, we get:

+x%28x+-+4%29+-+3%28x+-+4%29=+0

(x - 4)(x - 3) = 0

==> x - 4 = 0 OR x - 3 = 0

==> x = 4 OR x = 3

Hence, the solution.