A & # 178; + C & # 178; = 2Ab + 2bc-2b & # 178; factorization

A & # 178; + C & # 178; = 2Ab + 2bc-2b & # 178; factorization

Generally speaking, factorization is a formula, which is a little strange. You should use factorization to solve this problem? A & # 178; + 2B & # 178; + C & # 178; - 2ab-2bc = 0 (A & # 178; - 2Ab + B & # 178;) + (B & # 178; - 2BC + C & # 178;) = 0 (a-b) &# 178; + (B-C) &# 178; = 0. The square of a number must be ≥ 0

The square mnx & # 178; - (M2 + n & # 178;) x + Mn = 0 (Mn ≠ 0, M2 > n & # 178;)

If it is known that the quadratic equation x & # 178; + MX + 4 has two positive integer roots, then M may obtain the value of___

Using Veda's theorem
If the product of the two roots is 4, then the two roots have the following conditions
(1) 1 and 4, then - M = 1 + 4, M = - 5
(2) 2 and 2, then - M = 2 + 2, M = - 4
So, the possible values of M are - 5, - 4