Question

Разложите на множители. 5.88

Answer 1

1)   ..........=(a+b)(a²-ab+b²) -2ab(a+b)=(a+b)( -ab-2ab)= -3ab(a+b)

2)   ..........=(m-n)(m²+mn+n²)-6m(m²+mn+n²)=(m²+mn+n²)(m-n-6m)=(m²+mn+n²)(-5m-n)

3)    ........=(x-y)(x²+xy+y²)+8xy(x-y)=(x-y)(x²+xy+y²+8xy)=(x-y)(x²+9xy+y²)

4)   ......=(p+q)(p²-pq+q²) -2pq(p²-pq+q²)=(p²-pq+q²)(p+q-2pq)