Question

efetue eliminando os parentes
a)(5x²)+(-2y²)
b)(10ab)-(3ab)
c)(-3y³)-(-4y³)
d)(-y+12y)

Answer 1

a) (5$x^{2}$)+(-2y)
=5$x^{2}$ + (-2y)
=5$x^{2}$ - 2y

b) (10ab) - (3ab)
=7ab

c) (-3$y^{3}$) - (-4$y^{3}$)
=-3$y^{3}$ + 4$y^{3}$
=$y^{3}$

d) (-y+12y)
=11y