What is the standard form of #y= (x+1)(4x-5) #?

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Answer 1 · 2016-05-27T03:14:19

The standard form of a polynomial function is obtained by multiplying everything with everything.

Use FOIL to help out.

First: #x xx 4x#

Outside: #x xx -5#

Inside: #1 xx 4x#

Outside: #1 xx -5#

Therefore, #y = 4x^2 - x - 5#

Hopefully this helps!