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人気のある代数 >

5^2+12^2=2x^2

解

5^{2} + 1 2^{2} = 2 x^{2}

解

x = \frac{13}{2}, x = - \frac{13}{2}

+1

十進法表記

x = 9.19238 \dots, x = - 9.19238 \dots

解答ステップ

5^{2} + 1 2^{2} = 2 x^{2}

辺を交換する

2 x^{2} = 5^{2} + 1 2^{2}

5^{2} = 25

2 x^{2} = 25 + 1 2^{2}

1 2^{2} = 144

2 x^{2} = 25 + 144

数を足す:

25 + 144 = 169

2 x^{2} = 169

以下で両辺を割る

2

x^{2} = \frac{169}{2}

x^{2} = f (a)

の場合, 解は

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

x = \frac{169}{2}, x = - \frac{169}{2}

\frac{169}{2} = \frac{13}{2}

- \frac{169}{2} = - \frac{13}{2}

x = \frac{13}{2}, x = - \frac{13}{2}

グラフ

人気の例

solvefor t,M(t)=-2t^2+100t+180

so l v e f or t, M (t) = - 2 t^{2} + 100 t + 180

0.937058x^2-2.125884x+0.937058=0

0.937058 x^{2} - 2.125884 x + 0.937058 = 0

d^{2} + 6 d - 27 = 0

5 x^{2} + 8 x = 10

(y + 2)^{2} = 25