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Calculation: the first (3Y & # 178;), # 179; - 5Y & # 178; [the fourth power of 2Y - Y (3y-1 / 5)]; Second: given X & # 178; - 2x = 2, simplify the following formula first, and then evaluate: (x-1) &# 178; + (x + 3) (x-3) + (x-3) (x-1) Third: Factorization factor: 2x & # 178; + 2xy-3x-3y;
The first one is (3Y & # 178;), # 179; - 5Y & # 178; [the fourth power of 2y-y (3y-1 / 5)] = 6th power of 9y-6th power of 10Y + 4th power of 15y-y & # 178; = - 6th power of Y + 4th power of 15y-y & # 178; the second one is known as X & # 178; - 2x = 2. Simplify the following formula first and then evaluate it: (x-1) &# 178; + (x + 3) (x -...)
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