Which equations are correct?
Select each correct answer.
−4b^3(5b^2+3)=−20b^6−12b^3
−6y^4(4y^2+2)=−24y^8−12y^4
−4x^2(2x^2+5)=−8x^4−20x^2
−5a^4(2a^2+4)=−10a^6−20a^4
Which polynomial represents the area of the rectangle? http://prntscr.com/ku2v2m
2x2−9x−10
2x2−x−10
2x2+x−10
2x2−10
