SOLUTION: Please help me solve this Write the following expression in the form of ax^2+bx+c (i) --> (x+2)(x+5) (ii)--> (x-3)(x-4)

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: Please help me solve this Write the following expression in the form of ax^2+bx+c (i) --> (x+2)(x+5) (ii)--> (x-3)(x-4)      Log On


   

Question 810761: Please help me solve this
Write the following expression in the form of ax^2+bx+c
(i) --> (x+2)(x+5)
(ii)--> (x-3)(x-4)
Answer by erica65404(394) About Me  (Show Source):
You can put this solution on YOUR website!
Use the foil method.
(a+b)(c+d)
a(c+d)+b(c+d)

i)
%28x%2B2%29%28x%2B5%29
x%28x%2B5%29%2B2%28x%2B5%29
x%5E2%2B5x%2B2x%2B10%0D%0A%7B%7B%7Bx%5E2%2B7x%2B10

ii)
%28x-3%29%28x-4%29
x%28x-4%29-3%28x-4%29
x%5E2-4x-3x%2B12
x%5E2-7x%2B12