SOLUTION: consider the following formula y=3(x+5)(x-2) which one of the following formulas is equivelent to this one? A.y=3x(squared)+9x-30 B.y=x(squared)+3x-10 c.y=3x(squar

Algebra ->  Functions -> SOLUTION: consider the following formula y=3(x+5)(x-2) which one of the following formulas is equivelent to this one? A.y=3x(squared)+9x-30 B.y=x(squared)+3x-10 c.y=3x(squar      Log On


   

Question 128337: consider the following formula
y=3(x+5)(x-2)
which one of the following formulas is equivelent to this one?
A.y=3x(squared)+9x-30
B.y=x(squared)+3x-10
c.y=3x(squared)+3x-10
D.y=3x(squared)+3x-30
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
+y=3%28x%2B5%29%28x-2%29 Start with the given equation


+y=3%28x%5E2%2B3x-10%29 Foil %28x%2B5%29%28x-2%29 to get x%5E2%2B3x-10


+y=3x%5E2%2B9x-30 Distribute



So +y=3%28x%2B5%29%28x-2%29 is equivalent to +y=3x%5E2%2B9x-30 which means the answer is A