(8.1x^2-5.9x-7.1)+(-9.8x^2-8.1x-4.8)=
8.1x^2+(-9.8x^2) -5.9x+(-8.1x) -7.1+(-4.8)=
8.1x^2-9.8x^2 -5.9x-8.1x -7.1-4.8=
-1.71x^2 -14x -11.9
add the following
(8.1x^2-5.9x-7.1)+-9.8x^2-8.1x-4.8)
2 answers
I need helppp. With 7.1-2.34+5.9