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y²z³)³=(2x+5y)²=(-2t-1)²=(1/3m-½)²=(7ab+2)²=

题目详情
y²z³)³= (2x+5y)²= (-2t-1)²= (1/3m-½)²= (7ab+2)²=
▼优质解答
答案和解析
(y²z³)³=y^6z^9
(2x+5y)²=4x²+20xy+25y²
(-2t-1)²=4t²+4t+1
(1/3m-½)²=1/9m²-1/3m+1/4
(7ab+2)²=49a²b²+28ab+4