Hello I tried every which way but don't get how (7-9)^4=16 thank you

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Hello I tried every which way but don't get how (7-9)^4=16 thank you

Guest Jan 30, 2015

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Best Answer

+5

so (7-9) ^ 4 = 16

well that's the same as (-2)^4

and that's the same as -2 * -2 * -2 * -2

which is ----16

according to rules, a double negative cancells out, so you are left with 16

Guest Jan 30, 2015

1⁺⁰ Answers

+5

Best Answer

so (7-9) ^ 4 = 16

well that's the same as (-2)^4

and that's the same as -2 * -2 * -2 * -2

which is ----16

according to rules, a double negative cancells out, so you are left with 16

Guest Jan 30, 2015

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