If | 2x + 3Y | + (x-3) & # 178; = 0

If | 2x + 3Y | + (x-3) & # 178; = 0

According to the meaning of the title:
2x+3y=0;
x-3=0;
x=3;
2×3+3y=0;
3y=-6;
y=-2;
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If 2x = 3Y, then x & # 178; + Y & # 178 / / X & # 178=____________

Yes (X & # 178; + Y & # 178;) / X & # 178;)!
From 2x = 3Y, Y / x = 2 / 3,
So (X & # 178; + Y & # 178;) / X & # 178; = 1 + (Y / x) &# 178; = 1 + 4 / 9 = 13 / 9

Factorization of a ^ n + 2-18a ^ n + 81a ^ n-2 (n > 2 and N is an integer)

The original formula = a ^ (n-2) (a ^ 4-18a & sup2; + 81)
=a^(n-2)(a²-9)²
=a^(n-2)(a+3)²(a-3)²