# Algebra

Factor:
x^4(4) (2x+1)^3 (2x)+(2x+1)^4 (4x^3)

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1. x^4(4) (2x+1)^3 (2x)+(2x+1)^4 (4x^3)
Collecting factors, we have
8x^5(2x+1)^3 + 4x^3(2x+1)^4
= 4x^3(2x+1)^3 (2x^2+2x+1)

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