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Eight x plus y equals two over seven
It is neccesary because you cannot subtract them without having a common denominator so you have to rename 4 1/2
Answer:
Part A
to the 10th power will be positive and to the 11th power is negative. When the exponent is even it will be positive. When it is odd it will be negative
Part B
The one with the negative enclosed will be positive. The second one, the exponent is only effecting the number and not the sign. The outcome will always be negative.
