SOLUTION: Hello! I need help converting these equations into factored form. 58. Convert each equation to factored form. a) y = 4x – 20 b) y = x^2 - x – 12 c) y = 25x^2 – 36 d) y =

Algebra ->  Numeric Fractions Calculators, Lesson and Practice -> SOLUTION: Hello! I need help converting these equations into factored form. 58. Convert each equation to factored form. a) y = 4x – 20 b) y = x^2 - x – 12 c) y = 25x^2 – 36 d) y =       Log On


   

Question 1121598: Hello! I need help converting these equations into factored form.
58. Convert each equation to factored form.
a) y = 4x – 20
b) y = x^2 - x – 12
c) y = 25x^2 – 36
d) y = -9x^2 + 72x + 81
Thank you.
Answer by ikleyn(52814) About Me  (Show Source):
You can put this solution on YOUR website!
.
Hello! I need help converting these equations into factored form.
58. Convert each equation to factored form. 

a) y = 4x – 20              y = 4x - 20 = 4*(x - 5)

b) y = x^2 - x – 12         y = (x-4)*(x+3)

c) y = 25x^2 – 36           y = (5x-6)*(5x+6)    <<<---=== use the formula  a*2 - b^2 = (a+b)*(a-b)

d) y = -9x^2 + 72x + 81     y = -9*(x^2 - 8x - 9) = -9*(x-9)*(x+1).

Solved.