Porfavor ayudenme a solucionar esto

a. [(2X^3) + Y] * [(-1/4) -XY]

b. Ab = [(n^2 - 1) * (4m - n)] / 2 + (4m - n)^2

Step-by-step explanation:

Hello

For a:

The figure is a rectangle, then its area is Lenght*Weight, then:

Aa = [(2X^3) + Y] * [(-1/4) -XY]

For the b:

The total figure is composed by two figures, a square and a rectangle triangle:

Then, Ab = Atriangle + Asquare

Atriangle = (Base*height)/2

Atriangle = [(n^2 - 1) * (4m - n)] / 2

Asquare = Side*Side

Asquare = (4m - n)*(4m - n)

Asquare = (4m - n)^2

Then

Ab = [(n^2 - 1) * (4m - n)] / 2 + (4m - n)^2

You can to do now the reduction of terms and factorizations =D

Best regards

uhhh idk u yolo?