-1+10x^3+x^2
−1+10x
3
+x
2

=20x3+2x2−2

Step-by-step explanation:

Let's simplify step-by-step.

−1+10x3+x2−1+10x3+x2

=−1+10x3+x2+−1+10x3+x2

Combine Like Terms:

=−1+10x3+x2+−1+10x3+x2

=(10x3+10x3)+(x2+x2)+(−1+−1)

=20x3+2x2+−2

the reason why your question keeps getting deleted because this is not a school related question : )

i will answer your question though.

i never tried church's

answer rather than having to add and subtract the measurements of the semi-circle, notice that the semicircle to the left of ad is actually identical in area to the blank semicircle-shaped space to the left of bc. so if we transferred the red semicircle into the blank space, we would end up with a square of side length 24 cm. the area of a square is s^2 = 24^2 = 676 cm^2.

u also answered this so i think u would know but i am here to

put in or use mine