Question

Simplify the following expression, and combine like terms: 15x²y - 4(-2xy² - 9xy) + 12xy² - 8xy - 9x ​

Answer 1

15x^2y+20xy^2+28xy-9x

Explanation:

15x²y - 4(-2xy² - 9xy) + 12xy² - 8xy - 9x ​

First distribute the -4 to all the terms in the parentheses

15x²y +8xy² + 36xy + 12xy² - 8xy - 9x ​

Now combine like terms

15x²y +8xy² + 12xy² + 36xy - 8xy - 9x ​

15x^2y+20xy^2+28xy-9x