Question

Разложи на множители

1) a²+2ab

2) (m+3)+(m-3)(m+3)

3) 5(1-x)+(1-x²)
​

Answer 1

1)

$a^2+2ab=a(a+2b)$

2)

$(m+3)+(m-3)(m+3)=(m+3)(1+m-3)=(m+3)(m-2)$

3)

$5(1-x)+(1-x^2)=5(1-x)+(1-x)(1+x)=(1-x)(5+1+x)=(1-x)(6+x)$