Question

Разложить на множители. а)(x+1)+x(x+1); б)m^2(n+1)+2m(n+1);

Answer 1

а)(1+х)(1+х)(1+х)
б)m(m+2)(n+1)

Answer 2

ab + ac = a (b+c)
a + ac = a(1+c)
(x+1)+x(x+1) = (x+1)(1+x) = (x+1)²

m²(n+1)+2m(n+1) =
m( m(n+1)+2(n+1) )=
m( (n+1)(m+2) ) =
m(n+1)(m+2)