Which polynomial is twice the sum of 4x^2-x+1 and -6x^2+x-4

Question

1.-2x^2-3

2.-4x^2-3

3.-4x^2-6

4.-2x^2+x-5

Answer 1

Hi Mylah,

the sum of these two polynomials is - 2 x^2 - 3. the two x variables are additive inverses and -6 x^2 and 4 x^2 equal - 2 x^2 and -3 results from -4 and 1

Multiplying the sum by 2 gives us - 4 x^2 - 6 . Answer 3