Question

find the sum or difference.
write your answer in
standard form.
$(6k^{2}+2k+9)+(4k^{2}-5k)$

Explanation:

Step1: Group like terms

$(6k^2 + 4k^2) + (2k - 5k) + 9$

Step2: Combine quadratic terms

$10k^2 + (2k - 5k) + 9$

Step3: Combine linear terms

$10k^2 - 3k + 9$

Answer:

$10k^2 - 3k + 9$