Question

3- Efetue: a) (2x-1)-(3x2 + 4x)= e) (3x + 5)- (2x - 4) = b) (x+1). (3x - 2) = 06**)(23-5) c) (a - 1)(a + 1) 9) (x-2)(2-3x+1)= d) (x-2)(x+3)=​

Answer 1

Resposta:

a)2x-1-3x²-4x=

  2x-4x-1-3x²=

  -2x-1-3x²=

  -3x²-2x-1

b)3x²-2x+3x-2=

  3x² +x - 2

c)

d)x²+3x-2x-6=

  x²+x-6

e) 3x+5-2x+4=

   3x-2x+5+4=

   x+9

Explicação passo a passo: