Question

(4x2y3 + 2xy2 – 2y) – (–7x2y3 + 6xy2 – 2y)

Answer 1

11x²y³ - 4xy²

Explanation:

Distribute the first parenthesis by 1 and the second by - 1

Given

(4x²y³ + 2xy² - 2y) - (-7x²y³ +6xy² - 2y)

= 4x²y³ + 2xy² - 2y + 7x²y³ - 6xy² + 2y ← collect like terms

= (4x²y³ + 7x²y³) + (2xy² - 6xy²) + (- 2y + 2y)

= 11x²y³ + (- 4xy²) + 0

= 11x²y³ - 4xy²