Question

Simplify the expression:
–
10+5k+9k2+
–
9+
–
4k2+
–
k2

Answer 1

Combine like terms:

Constants: −10 − 9 = −19
k-terms: 5k
k^2-terms: 9k^2 − 4k^2 − k^2 = 4k^2

So the simplified expression is 4k^2 + 5k − 19.