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受欢迎的代数 >

x^2+2^2=5^2

解答

x^{2} + 2^{2} = 5^{2}

解答

x = 21, x = - 21

+1

十进制

x = 4.58257 \dots, x = - 4.58257 \dots

求解步骤

x^{2} + 2^{2} = 5^{2}

将

2^{2}

到右边

x^{2} = 21

对于

x^{2} = f (a)

解为

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

x = 21, x = - 21

作图

流行的例子

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