Find the difference of functions s and r shown below. r(x) = –x² + 3x s(x) = 2x + 1

This is the concept of algebra, we are required to get the difference between r(x)=-x^2+3x and s(x)=2x+1
thus;
r(x)-s(x)
=(-x^2+3x)-(2x+1)
=-x^2+3x-2x-1
=-x^2+x-1
the answer will therefore be:
r(x)-s(x)=-x^2+x-1

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