Let the polynomials be:
P1(x)=3x2−7x+6,
P2(x)=−5x2−4x+2,
P1(x)+P2(x)= Choices.
A) 2x2 + 11x - 7
B) -2x2 - 11x + 8
C) -2x2 - 11x + 6
D) 2x2 - 9x + 7
E) None of these
Solution:   P1(x)+P2(x)=(3x2−7x+6)+(−5x2−4x+2)=P1(x)+P2(x)=(3x2−7x+6)+(−5x2−4x+2)=   3x2−7x+6−5x2−4x+2=3x2−7x+6−5x2−4x+2=   −2x2−11x+8   Answer -2x2 - 11x + 8
<result>B</result>
Let the polynomials be:
P1(x)=3x2−7x+6,
P2(x)=−5x2−4x+2,
P1(x)+P2(x)=