By adding like terms we got that polynomial [tex]4x-7+6x^2+2x-3x^2+12[/tex] is equal to
[tex]3x^2+6x+5[/tex]
What is polynomial ?
Polynomial is an expression consisting of indeterminates and coefficients, that involves only the operations of addition, subtraction, multiplication, and non-negative integer exponentiation of variables.
Given polynomial
[tex]4x-7+6x^2+2x-3x^2+12[/tex]
We can add and subtract like terms
[tex](6x^2-3x^2)+(4x+2x)+(12-7)\\\\\\3x^2+6x+5[/tex]
By adding like terms we got that [tex]4x-7+6x^2+2x-3x^2+12[/tex] is equal to
[tex]3x^2+6x+5[/tex]
To learn more about polynomials vist :https://brainly.com/question/2833285
