Subtract –5x2 + 10x – 1 from 6x² – 2 + 3.

If f(x)=2x-6 and g(x)=3x+9, find (f-g)(x)

Gabriel determined that his total cost would be represented by 2.5x + 2y – 2. his sister states that the expression should be x + x + 0.5x + y + y – 2. who is correct? explain.

Prove that (x-2)is factor of p (x)=2x³-3x²-17x+30