Question

simplify by combining like terms. 11y + 10y - 5y² - 4y² 11y + 10y - 5y² - 4y² = \square

Explanation:

Step1: Combine linear y terms

$11y + 10y = 21y$

Step2: Combine quadratic $y^2$ terms

$-5y^2 - 4y^2 = -9y^2$

Step3: Combine the two results

$21y - 9y^2$

Answer:

$21y - 9y^2$