Question

los productos notables:
(4x+2)(x-5)
(2x+5y)(5x+y)
(2x²-1)(3x²-3)
(7a²-b)(3a-2b)
(a+2)al cubo

Answer 1

1.=4x＾2+2x-20x-10=4x＾2-18x-10
2.=10x＾2+2xy+25yx+5y＾2
3.=6x＾4-6x＾2-3x＾2+3=6x＾4-9x＾2+3
4.=21a＾3-14a＾2b-b3a -2b＾2
5.=a＾3+2＾3=a＾3+8