Question

qual valor de m+n-o sabendo-se que: m=4x³+6x²-6x n=2x²-6x-18 o=3x+2

Answer 1

m = 4x^3 + 6x^2 - 6x
+
n = 0x^3 + 2x^2 - 6x - 18
------------------------------------------
m+n= 4x^3 + 8x^2 -12x - 18
- o= 0x^3 + 0x^2 +3x + 2
-------------------------------------------
m+n-o= 4x^3 + 8x^2 -15x - 20