Question

efetue as adições e as subtrações de polinômios; a]5x+2+3x-1= b]2x+3-7x+4= c]5x-7x+10-3x-5x-8= d]12x+3x-5= e]8x+12+2x+5= f]3x-8x+8x+10x= g]4x-5x+11+3x-15

Answer 1

a) 5x+2+3x-1 = 8x + 1

b) 2x+3-7x+4 = -5x + 7

c) 5x-7x+10-3x-5x-8 = -2x + 2 - 8x = -10x + 2

d) 12x+3x-5 = 15x - 5

e) 8x+12+2x+5 = 10x + 17

f) 3x-8x+8x+10x = -5x + 18x = 13x

g) 4x-5x+11+3x-15 = -x - 4 + 3x = 2x - 4