kellyrasmussen964 kellyrasmussen964

01-07-2017
Mathematics

contestada

Which polynomial represents the sum below?

(4x4 - x2 - x) + (x4 + x3 + x2 + x - 1)

A. 5x4 + 2x4 + 2x2 - 1
B. 5x4 + 2x4 - 1
C. 5x4 + x3 - 1
D. 5x4 + x4 + 2x2 - 1

Respuesta :

tafa1030 tafa1030

03-07-2017

the answer is c. we add 4x^4+x^4. then cancel the -x^2+x^2 and also the -x and x . so, we are left with the -1. that's why the answer is c

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