Question

add or subtract to simplify: (4x² + x) - (x² + 2x)

Explanation:

Step1: Distribute the negative sign

$(4x^2 + x) - x^2 - 2x$

Step2: Combine like $x^2$ terms

$4x^2 - x^2 + x - 2x = 3x^2 + x - 2x$

Step3: Combine like $x$ terms

$3x^2 + (1x - 2x) = 3x^2 - x$

Answer:

$3x^2 - x$