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Which of the binomials below is a factor of this trinomial? x^2 + 3x - 4A. x+4B. x+8C. x-4D. x^2+4

Which of the binomials below is a factor of this trinomial? x^2 + 3x - 4A. x+4B. x-example-1
User Christian Mayne
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1 Answer

6 votes
6 votes

Given:

The equation is:


x^2+3x-4

Find-:

Binomials factor of the equation

Explanation-:

The quadratic equation,


x^2+3x-4

Solve for factor


\begin{gathered} =x^2+3x-4 \\ \\ =x^2+4x-x-4 \\ \end{gathered}

Then the factor is:


\begin{gathered} =x^2+4x-x-4 \\ \\ =x(x+4)-1(x+4) \\ \\ =(x+4)(x-1) \end{gathered}

So, the factor is x + 4

User Trnelson
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