Question

subtract.
$(3x^{4} + 2x^{3} + 6) - (7x^{3} + 5) =$

Explanation:

Step1: Distribute the negative sign

$3x^4 + 2x^3 + 6 - 7x^3 - 5$

Step2: Combine like $x^3$ terms

$3x^4 + (2x^3 - 7x^3) + 6 - 5 = 3x^4 - 5x^3 + 6 - 5$

Step3: Combine constant terms

$3x^4 - 5x^3 + (6 - 5)$

Answer:

$3x^4 - 5x^3 + 1$