Answer
$(x+4)^4=x^4+16x^3+96x^2+256x+256$
Work Step by Step
$(x+4)^4=~_4C_0x^4+~_4C_1x^3(4)^1+~_4C_2x^2(4)^2+~_4C_3x^1(4)^3+~_4C_4(4)^4=x^4+16x^3+96x^2+256x+256$
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