Subtract: 3x^2 - 7x + 4 from 5x^2 - 3x + 8.
subtrace x from y means y-x sosubtract 3x^2-7x+4 from 5x^2-3x+8 means5x^2-3x+8-(3x^2-7x+4)=5x^2-3x+8-1(3x^2-7x+4)5x^2-3x+8-3x^2+7x-4=5x^2-3x^2-3x+7x+8-4=2x^2+4x+4