add using horizontal method : 4x³- 3x²-x+3 , 7+2x+5x²-3x³ , -4x²-9x and -7-x²-x³
Answers
Answered by
2
4x^3 -3x^2 -x +3
-3x^3 +5x^2 +2x+7
-4x^2 -9x
-x^3 -x^2 -7
-----------------------------
-3x^2-8x+3
Similar questions