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 ❤