B) 6x(x - 2y) + 5y(x – 2y)​

6x(x - 2y) + 5y(x – 2y)​

= 6x^2 - 12xy + 5xy - 10y^2

= 6x^2 - 7xy - 10y^2

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