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

1 Answer
Tony B
Jul 31, 2016

#y=4x^2+18x+14#

Explanation:

Write as #y=color(blue)((2x+7))color(brown)((2x+2))#

Multiply everything in the right hand side brackets by everything in the left. Note that the + in +7 follows the 7.

#y=color(brown)(color(blue)(2x)(2x+2)" "color(blue)(+7)(2x+2))#

#y=4x^2+4x" "+14x+14#

#y=4x^2+18x+14#

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