Solve by using the perfect squares method.

Algebra
Tutor: None Selected Time limit: 1 Day

(2x+4)^2=64

Mar 10th, 2015

Answer:

here I can write:

(2x+4)^2  - 8^2=0

(2x+4-8)(2x+4+8)=0

or:

(2x-4)(2x+12)=0

I divide both sides by 4:

(x-2)(x+6)=0

so your solutions are:

x= 2,  and  x= -6

Mar 10th, 2015

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