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受欢迎的代数 >

20^2=10^2+x^2

解答

2 0^{2} = 1 0^{2} + x^{2}

解答

x = 103, x = - 103

+1

十进制

x = 17.32050 \dots, x = - 17.32050 \dots

求解步骤

2 0^{2} = 1 0^{2} + x^{2}

交换两边

1 0^{2} + x^{2} = 2 0^{2}

将

1 0^{2}

到右边

x^{2} = 300

对于

x^{2} = f (a)

解为

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

x = 300, x = - 300

300 = 103

- 300 = - 103

x = 103, x = - 103

作图

流行的例子

85.183x^2-174.9x+93.362=34

85.183 x^{2} - 174.9 x + 93.362 = 34

x^2-2/3 x-1/3 =0

x^{2} - \frac{2}{3} x - \frac{1}{3} = 0

(7+1)(x^2+2x)=(7+3)(3x+5)

(7 + 1) (x^{2} + 2 x) = (7 + 3) (3 x + 5)

solvefor y,f=101+ln(e^{2x}+z^3)+xe^z-y^2z

so l v e f or y, f = 101 + ln (e^{2 x} + z^{3}) + x e^{z} - y^{2} z

solvefor x,x^2+4y^2+4xy+12=0

so l v e f or x, x^{2} + 4 y^{2} + 4 x y + 12 = 0