How do you answer this? 5x[(8x divided by 2)^3 -x]

Question

aakashsudhakar · Answer

5x[(8x/2)^3 - x]
5x[(4x)^3 - x]
5x[64x^3 - x]
320x^4 - 5x^2

^^ That would be a good final answer, but if you want it simplified, stick around a little longer...

320x^4 - 5x^2
(5x^2)(64x^2 - 1)
(5x^2)(8x + 1)(8x - 1)

^^ That is the most simplified correct answer as well.

anonymous · Answer

This is how it looks like using the symbols $$5x[(8x \div2)^3-x]$$

anonymous · Answer

@AakashSudhakar

aakashsudhakar · Answer

Yes, it still all works out, if you check my work. You should still get either 320x^4 - 5x^2 or the more simplified (5x^2)(8x + 1)(8x - 1), depending on how much work you wanted to do. Both equal the same expression.

anonymous · Answer

THANK YOU SO MUCH FOR YOUR HELP! @AakashSudhakar