Question

add or subtract to simplify
$(5x + x^2 - 4) - (4x - x^2 + 6)$

Explanation:

Step1: Distribute the negative sign

$(5x + x^2 - 4) - 4x + x^2 - 6$

Step2: Rearrange like terms

$x^2 + x^2 + 5x - 4x - 4 - 6$

Step3: Combine like terms

$2x^2 + x - 10$

Answer:

$2x^2 + x - 10$