Question

1) Fatora as expressões: ( fator comum)

a) 3a+6t
b) x²j+xz
c) 15m-5m²

2) Fatora: ( agrupamento)

a) 3y+3+xy+c
b) aj+by+2a+2b
c) 8ax+bx+8aj+by

Answer 1

1. a) 3a +6t = 3(a +2t)
b) x^2j +xz = x(xj + z)
c) 15m -5m^2 = 5m(3 -m)

2. a) [A questão está correta?]
b) aj +by +2a +2b= a(j +2) + b(y +2)= (a +b)(y +2)
c) 8ax +bx + 8aj +by= 8a(x +j) +b(x +y)

Answer 2

a) 3a +6t = 3( a+2t)
b) x²j +xz= x(xj+z)
c) 15m -5m²=  5m(3-m)

a) 3y+3 +xy+c verifique as letras
b) ay+by+2a+2b=   
(ay + by)+(2a +2b)
y(a+b)+2(a+b)
(y+2).(a+b)
c) 8ax +bx +8ay+by
(8ax+8ay)+(bx +by)
8a(x+y)+b(x+y)
(8a+b).(x+y)