Question

Realize as operações indicadas com polinômios: a) (5x²-7x+2)+(2x²+7x-1) b) (4x+3y+1)+(6x-2y-9) c) (2x³+5x²+4x)+(2x³-3x²+x)) d) (4x-y-1)-(9x+y+3) e) (-2a²-3ª+6)-(-4a²-5ª+6) f) (4x³-6x²+3x)-(7x³-6x²+8x) g) 4x (a+b) h) 2x(x²-2x+5) i) (x+5).(x+2)

Answer 1

Resposta:

a) (5x²-7x+2) + (2x²+7x-1) = 7x²+1

b)(4x+3y+1)+(6x-2y-9) = 10x+y-8

c) (2x³+5x²+4x)+(2x³-3x²+x) = 4x³+2x²+5x

d) (4x-y-1)-(9x+y+3)= -5x-2y-4

e)(-2a²-3ª+6)-(-4a²-5ª+6)= 2a²+2a

f) (4x³-6x²+3x)-(7x³-6x²+8x) = -3x³-5x

g) g) 4x (a+b)= 4ax + 4bx

h) 2x(x²-2x+5)= 2x³- 4x²+10x

i)(x+5).(x+2)= x²+ 2x +5x+10 = x² + 7x +10

Explicação passo a passo: