Question

fatore: a) 5b+15c b) 64-x² c) ax+x+a(1 d)y²+10y+25

Answer 1

Fatore:
 a) 5b+15c  = 5(b + 3c)
 b) 64-x² = (8 -x)(8 + x)

 c) ax+x+a(1????????????

CORRIGINDO  ( alterando)
c)
 ax+x+a+1 
x(a + 1)+ 1(a + 1)
(a + 1)(x + 1) resposta)

 d)y²+10y+25

y² + 10y + 25       (y² = y.y)
                            (25 = 5.5)

y² + 10y + 25 = (y + 5)(y + 5) = (y + 5)²