Let the polynomials be:
P1(x)=3x2−7x+7,
P2(x)=−5x2−4x+2,
P1(x)+P2(x)=
Pick:  A) 2x2 + 11x - 7  B) -2x2 - 11x + 9  C) -2x2 - 11x + 6  D) 2x2 - 9x + 7  E) None of these
Solution:   P1(x)+P2(x)=(3x2−7x+7)+(−5x2−4x+2)=P1(x)+P2(x)=(3x2−7x+7)+(−5x2−4x+2)=   3x2−7x+7−5x2−4x+2=3x2−7x+7−5x2−4x+2=   −2x2−11x+9   Answer -2x2 - 11x + 9
<result>B</result>
Let the polynomials be:
P1(x)=3x2−7x+7,
P2(x)=−5x2−4x+2,
P1(x)+P2(x)=