Simplify the expression.
-8x-10 y-6
-2x2y-8
write your answer without negative exponents.
enter the correct answer.
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done
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Parabolas y=−2x^2 and y=2x^2 +k intersect at points a and b that are in the third and the fourth quadrants respectively. find k if length of the segment ab is 5.

50 points~ ! i have to turn this in tomarrow

Prove that 16^4-2^13-4^5 is divisible by 11.