Asked by anonymous

(x + 2y)^2 simplified

11 years ago

Answered by anonymous

i need to know how to do this..

11 years ago

Answered by Reiny

(x+2y)^2
= (x+2y)(x+2y)
= x^2 + 2xy + 2xy + 4y^2
= x^2 + 4xy + 4y^2

The method I used is sometimes referred to a FOIL

11 years ago

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