Question

question
combine like terms.
-2y + 2y² + 2y² - y

Explanation:

Step1: Identify like terms

Like terms for \(y^2\): \(2y^2\) and \(2y^2\); like terms for \(y\): \(-2y\) and \(-y\).

Step2: Combine \(y^2\) terms

\(2y^2 + 2y^2 = (2 + 2)y^2 = 4y^2\).

Step3: Combine \(y\) terms

\(-2y - y = (-2 - 1)y = -3y\).

Step4: Combine results

Put the combined terms together: \(4y^2 - 3y\).

Answer:

\(4y^2 - 3y\)