Answer:
[tex]-2x^2+8x-10[/tex]
Step-by-step explanation:
Like terms are those which have same variable to the same power.
Standard form of any quadratic equation is in the form of:
[tex]y=Ax^2+Bx+C[/tex]
To subtract :
[tex](x^2+3x-7)-(3x^2-5x+3)[/tex]
Remove the parenthesis;
[tex]x^2+3x-7-3x^2+5x-3[/tex]
Combine like terms;
[tex]-2x^2+8x-10[/tex]
Therefore, the answer in standard form is, [tex]-2x^2+8x-10[/tex]
