Question

efetue as operações indicadas:
a) (2x³-3x²+x-1)+(5x³+6x²-7x+3)
b) (8x³-4x²+3x-5)-(6x³-7x²+5x-9)

Answer 1

a) 2x³-3x²+x-1 +5x³+6x²-7x+3=

2x³+5x³-3x²+6x²+x-8x-1+3=

7x³+3x²-7x+2.




b) 8x³-4x²+3x-5 -6x³+7x²-5x+9=

8x³-6x³-4x²+7x²+3x-5x-5+9=

2x³+3x²-2x+4