What is the standard form of y=(2x9)(x5)(2x+7)2?

1 Answer
Dec 10, 2015

y=2x247x4

Explanation:

The general standard form for a quadratic is
XXXy=ax2+bx+c
with constants a,b,c

Given
XXXy=(2x9)(x5)(2x+7)2

Expanding the terms:
XXXy=(2x219x+45)(4x2+28x+49)

Combine like terms:
XXXy=2x247x4