Answer
$x^4+8x^3+24x^2+32x+16$
Work Step by Step
Based on the Binomial Theorem, we have
$(x+2)^4=x^4+4(2)x^3+6(2)^2x^2+4(2)^3x+(2)^4
=x^4+8x^3+24x^2+32x+16$
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