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人気のある代数 >

2x^2-x^2-1=0

解

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

解

x = 1, x = - 1

解答ステップ

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

1

を右側に移動します

2 x^{2} - x^{2} = 1

類似した元を足す:

2 x^{2} - x^{2} = x^{2}

x^{2} = 1

x^{2} = f (a)

の場合, 解は

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

x = 1, x = - 1

1 = 1

- 1 = - 1

x = 1, x = - 1

グラフ

人気の例

solvefor x,x^2+y^2=9

so l v e f or x, x^{2} + y^{2} = 9

a^{2} + 3 a - 28 = 0

completesquare 8z^2+5z

co m pl e t es q u a re 8 z^{2} + 5 z

solvefor x,(x-3)^2+(y-5)^2=0

so l v e f or x, (x - 3)^{2} + (y - 5)^{2} = 0

quadraticformula x^2+11x+24=0

q u a d r a t i c f or m u l a x^{2} + 11 x + 24 = 0