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How is the following true:

8(x^2 + 5x)^7 = 8x^7(x+5)^7

Thanks!

Rewrote question slightly to improve readability.

1 Answer

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Best answer

You factorise the brackets into this: 8[x(x+5)]^7

Then the power of 7 applies to each of the elements in the square brackets x and (x+5) so you end up with 8x^7(x+5)^7