Question

65*) simplifique as expressões

a) (×+4)(×-3)+2

b) (×+3)(×+4)-2 (×+1)

c) 3×(×-1)+(×+2)(×+5)

Answer 1

A) (4x)(-3x)+2
12x+2
14x

B) (3x)(4x)-2(x+1)
12x-2x+2
10x+2
12x

C) 3x(x-1)+(x+2)(x+5)
3x-3+2x+10+2x+10
3x+2x+2x+10+10-3
7x+17
24x