x-y=1，xy=6，求x+y？知道要用完全平方公式，就是写不出步骤来

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安徽中考題，已知x+xy+y=93，求x+y的值，學霸的解法 #每日一題 #初中數學 #數學思維 #這數學題有點燙手 #每天學習一點點

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中考常考题：已知x²+y²=4，x-y=2，怎么求这个代数式的值？

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TN CLASS 11 MATHS VECTOR ALGEBRA EX 8.2 SUM 14

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If 2^x=10 and 10^y=32 then find xy

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If x+y=4 and xy=2, find x^4 + y^4.

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Math Olympiad Question x^2 - y^2 = 24, xy = 35 | Nice Equation | You should know this trick!!

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2022 China Math Olympiad: A Trigonometry Problem tan(x-y) (fill-in-the-blank problem)

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Math problem Factorization x^2 + xy - 56y^2

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x^y = y^(x-y)

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IF x^2-y^2=24 \u0026 xy=35 Then Find X+Y=? | Learn The Trick

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日本高考数学题：X+Y=-2,XY=4,求X^8+5Y^5的值。学霸做法很巧妙

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Simple tricks Maths Simplification | find x \u0026 y #shorts #maths #mathematics #xy #xyz #tricks #viral

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