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受欢迎的代数 >

13^2=12^2+y^2

解答

1 3^{2} = 1 2^{2} + y^{2}

解答

y = 5, y = - 5

求解步骤

1 3^{2} = 1 2^{2} + y^{2}

交换两边

1 2^{2} + y^{2} = 1 3^{2}

将

1 2^{2}

到右边

y^{2} = 25

对于

x^{2} = f (a)

解为

x = f (a), - f (a)

y = 25, y = - 25

25 = 5

- 25 = - 5

y = 5, y = - 5

作图

流行的例子

10 z^{2} - 37 z = 36

35 x^{2} - 8 x - 3 = 0

(x-3)^2-(2x+5^2)=-26x-28

(x - 3)^{2} - (2 x + 5^{2}) = - 26 x - 28

4 x^{2} + 8 n = 36

completesquare 13+12x-x^2

co m pl e t es q u a re 13 + 12 x - x^{2}