Question

Reduce términos semejantes eliminando signos de agrupación

a+a(a-b)+(-a+b)

a+{[-b²+2a²]-[a²-b²]}

2x+[-5x-(-2y+{-x+y})]

-[2p-(-3p+5q)+(-q+4p)]


ayuda porfa​

Answer 1

a+a(a-b)+(-a+b)

= a+a²-ab-a+b

= a²-ab+b

a+{[-b²+2a²]-[a²-b²]}

= a+{-b²+2a²-a²+b²

= a-b²+2a²-a²+b²

= a²+a

2x+{-5x-[-2y+(-x+y)]}

= 2x+{-5x-[-2y-x+y]}

= 2x+{-5x+2y+x-y}

= 2x - 5x +2y+x-y

= -2x+y

-[2p-(-3p+5q)+(-q+4p)]

= - [2p+3p-5q-q-4p]

= - 2p-3p+5q+q+4p

= - p+6q