Question

Efetue a seguinte adição algébrica:
3xy - 8x²y - (- 5xy) + 4x²y

Answer 1

3xy - 8x²y - (- 5xy) + 4x²y
3xy - 8x²y + 5xy +4x²y
8xy - 4x²y

Answer 2

$Resolu\c{c}\~ao\to \left\{\begin{array}{ccc}3xy-8x^2y-(-5xy)+4x^2y\\\\3xy-8x^2y+5xy+4x^2y\\\\\boxed{8xy-4x^2y}\end{array}\right$

Espero ter ajudado. :))