Respuesta :
If you simplify it more, it would be
3x^2+2x-9-4x^2+6x-3
if you simplify it more, the answer is standard form is
-x^2+8x-12
3x^2+2x-9-4x^2+6x-3
if you simplify it more, the answer is standard form is
-x^2+8x-12
The solution of given expression is,[tex]\bold{(3x^2+2x-9)-(4x^2-6x+3)=7x^2+8x-12}[/tex]
What is quadratic polynomial?
"It is a polynomial having degree two."
What is algebraic expression?
"It is an expression which is made up of variables and constants, along with some mathematical operations."
For given example,
We have been given an algebraic expression [tex](3x^2+2x-9)-(4x^2-6x+3)[/tex]
We need to subtract two quadratic polynomials.
[tex](3x^2+2x-9)-(4x^2-6x+3)\\\\= 3x^2+2x-9-4x^2+6x-3\\\\=3x^2-4x^2+2x+6x-9-3\\\\=(3+4)x^2+(2+6)x-12\\\\=7x^2+8x-12[/tex]
Therefore, [tex]\bold{(3x^2+2x-9)-(4x^2-6x+3)=7x^2+8x-12}[/tex]
Learn more about algebraic expression here:
https://brainly.com/question/19245500
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