Simplify the expression x\cdot\sqrt[3]{y^{6}}+y^{2}\cdot\sq rt[3]{x^{3}}

If (x-2) 2= 49, then x could be a. -9 b. -7 c.- 2 d. 5 e.9

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.

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)