(
2
x
2
+
7
x
)
+
(
−
x
2
+
10
x
+
3
)
(2x
2
+7x)+(−x
2
+10x+3)

Hello there i hope you are having a good day :) Your Question : (2x+ 2 + 7 x ) + ( − x2 + 10 x + 3 ) (2x +2 +7x)+(−x 2 +10x+3) Would equal :2x(2)+7x+((−x)(2))(2x)+((−x)(2))(2)+((−x)(2))(7x)+(10x)(2x)+(10x)(2)+(10x)(7x)+(3)(2x)+(3)(2)+(3)(7x)+(−x)(2)+10x+3 4x+7x+−4x2+−4x+−14x2+20x2+20x+70x2+6x+6+21x+−2x+10x+3 4x+7x+−4x2+−4x+−14x2+20x2+20x+70x2+6x+6+21x+−2x+10x+3 =(−4x2+−14x2+20x2+70x2)+(4x+7x+−4x+20x+6x+21x+−2x+10x)+(6+3) =72x2+62x+9 =72x2+62x+9Hopefully that help ya ❤