Question

multiply (x + 4)(x + 4)(x - 4 ).
please step by step explanation and write answer correct please reply me fast it's urgent..​

Answer 1

Answer:

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Answer 2

Answer:

x³+4x²- 16x +48

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x(x+4)+4(x+4)=x²+8x+16

x(x²+8x+16)- 4(x²+8x+16)=x³+4x²- 16x+48..