If p=3x^3-5x+9,Q=4x^3+5x-11,R=5x^3+4x^2-3x+7 then p+2Q+r is – InterviewSolution

1.

If p=3x^3-5x+9,Q=4x^3+5x-11,R=5x^3+4x^2-3x+7 then p+2Q+r is

Answer»

Step-by-step EXPLANATION:

p=3x^3-5x+9, Q=4x^3+5x-11, r=5x^3+4x^2-3x+7

A/Q to QUESTION,

p+2Q+r=3x^3-5x+9+2(4x^3+5x-11)+5x^3+4x^2-3x+7

=3x^3-5x+9+8x^3+10x-22+5x^3+4x^2-3x+7

=16x^3+4x^2+2x-6

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