Question

Which polynomial represents twice the sum of -5x^2-x+6 and 7x^2+x-1?

Answer 1

The polynomial that represent twice the sum of $-5x^{2}$ - x +6 and 7$x^{2}$ + x -1 is : 4$x^{2}$+10

What is a polynomial?

A polynomial is any  algebraic expression that has the least value of the power of  its variable as 2.

When the highest value of the polynomial is 2, it is a called a quadratic expression.

Analysis:

2( -5$x^{2}$ -x +6 + 7$x^{2}$ +x -1)

2( 2$x^{2}$ + 5) =

4$x^{2}$ + 10

In conclusion, the polynomial that represents the above  expressions is 4$x^{2}$ + 10

Learn more about polynomials: brainly.com/question/2833285

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