Question

calcule
a) (2xy - 3x + 1) + ( - 2x² + x - 6)
b) ( 3x2² - 5x + 8) - ( - 2x + 1 )
c) ( 2x³ - 4x² + 3x) - ( 8x² + 2x -4 )

Answer 1

Explicação passo-a-passo:

a) 2xy-3x+1+2ײ+x-6

2xy-2x+1x+2x²-6

2xy-2x-5+2x²

2xy-2x-5+2x²

b) (3x.4-5x+8)+2x-1

(12x-5x+8)+2x-1

(7x+8)+2x-1

7x+8+2x-1

9x+7

c) 2x³-4x²+3x-8x²-2x+4

2x³-12x²+3x-2x+4

2x³-12x²+x+4