Question

Evaluate the following
5^2 x 7^2 x (-1)^22

21^2 x (-1)^47

(-7)^2 x (-7)^3 x (-1)^15

2^2+3^2+4^2

(-7)^4+(-3)^7

11^3-7^3

(-5)^2-(-3)^7

(-7)^4+(-7)

Answer 1

Answer:

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