Answers

2015-08-01T13:11:34+08:00
4^2x+4 

the rule of multiplying power by a power. in which we multiply the exponents to get the product.
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2015-08-01T16:12:01+08:00
(2x+2)² first is (2x)²=4x²,second is(2x)(2)=4x+4x=8x,third is (2)²=4
           the answer is 4x²+8x+4
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