SOLUTION: {{{ (-2/7) ^4 }}} do i distribute the ^4 to the -2 and the 7? making it look like {{{ -2^4/ 7^4 }}} ? please help :)

Question 314462: do i distribute the ^4 to the -2 and the 7? making it look like ? please help :)
Answer by texttutoring(324) (Show Source): You can put this solution on YOUR website!
Yes, but be careful with that negative sign. It's inside the brackets, so it will all become a positive number when raised to the even number exponent.

(-2/7)^4
=(-2)^4 / 7^4
=16/2401

If that negative sign confuses you, think of it like this:

(-2/7)^4 = (-2/7)(-2/7)(-2/7)(-2/7) = 2^4 / 7^4 = 16/2401

Four negatives make a positive.
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