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人気のある代数 >

x^2+2^2=5^2

解

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

解

x = 21, x = - 21

+1

十進法表記

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

解答ステップ

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

2^{2}

を右側に移動します

x^{2} = 21

x^{2} = f (a)

の場合, 解は

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

x = 21, x = - 21

グラフ

人気の例

x^2-23/12 x+10/12 =0

x^{2} - \frac{23}{12} x + \frac{10}{12} = 0

x^{2} + 14 x = - 2

completesquare x^2+10x+16=0

co m pl e t es q u a re x^{2} + 10 x + 16 = 0

(ax+b)(cx-d)=4x^2-25

(a x + b) (c x - d) = 4 x^{2} - 25

(5x-2)^2-(3x+1)^2-x^2=60

(5 x - 2)^{2} - (3 x + 1)^{2} - x^{2} = 60