Answer:
a=√x3y5 or a=−√x3y5
Step-by-step explanation:
huhhh i dont understand fully
c)
(10x+5)-(-23-2x)=
10x+5+23+2x
=12x+28
2x+5x^2-(3x+7x^2)=
2x+5x^2-3x-7x^2
= -2x^2-1