Question

reduza os termos semelhantes
a) 3x³-(-2x²) + (-7x³)-(-x)
b) 1/5 x²+3/4 x²- y+ 1/3 y ​

Answer 1

Resposta:

begin{gathered}3x^3-(-2x^2)+(-7x^3)-(-x) \\ 3x^3+2x^2-7x^3+x \\ -7x^3+3x^3+2x^2+x \\ \boxed{\boxed{-4x^3+2x^2+x}}}\end{gathered}