Question

Let f(x) = 2x2 − 9x and g(x) = -5x2 + 4x. Find f(x) − g(x).

Answer 1

f(x)-g(x)
\[2x^2-9x-(-5x^2+4x)\]
distribute the -1 across
\[2x^2-9x+5x^2-4x\]
combine like terms
\[7x^2-13x\]

Answer 2

Thank you