Answer :
Given:
[tex]\mleft(4x^2-2x+1\mright)+(-7x^2+6x+5)[/tex]To simplify, first eliminate the parenthesis
[tex]4x^2-2x+1-7x^2+6x+5[/tex]Collect like terms:
[tex]4x^2-7x^2-2x+6x+1+5[/tex][tex]=\text{ -3x}^2+4x+6[/tex]ANSWER:
[tex]-3x^2+4x+6[/tex]