Question

4x squared- 5x +4-(9x squared +3x -1)

Answer 1

hello

the question here requires the subtraction of polynomials

`\begin{gathered} 4x^2-5x+4 \\ - \\ 9x^2+3x-1 \end{gathered}`

if we are to do this, we have to subtract the polynomials based on their degree

this would be equal to

`-5x^2-8x+5`

the above polynomial is the result after subtraction, but we can as well, decide to multiply through by -1, to make or eilimate the negative sign on the second degree polynomal

`\begin{gathered} (-5x^2-8x+5)*-1 \\ = \\ 5x^2+8x-5 \end{gathered}`