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受欢迎的代数 >

18^2+24^2=x^2

解答

1 8^{2} + 2 4^{2} = x^{2}

解答

x = 30, x = - 30

求解步骤

1 8^{2} + 2 4^{2} = x^{2}

交换两边

x^{2} = 1 8^{2} + 2 4^{2}

化简

1 8^{2} + 2 4^{2} : 900

对于

x^{2} = f (a)

解为

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

x = 900, x = - 900

900 = 30

- 900 = - 30

x = 30, x = - 30

作图

流行的例子

solvefor y,2x^3-2xy^2+3y^2-14=0

so l v e f or y, 2 x^{3} - 2 x y^{2} + 3 y^{2} - 14 = 0

2(3x-2)^2+10=42

2 (3 x - 2)^{2} + 10 = 42

(x - 4) (x - 6) = 8

x^2+1/2 x+1/16 =0

x^{2} + \frac{1}{2} x + \frac{1}{16} = 0

(6^2)/(18^2)+(y^2)/(15^2)=1

\frac{6 ^{2}}{1 8 ^{2}} + \frac{y ^{2}}{1 5 ^{2}} = 1