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人気のある代数 >

r^2=3^2+(-4)^2

解

r^{2} = 3^{2} + (- 4)^{2}

解

r = 5, r = - 5

解答ステップ

r^{2} = 3^{2} + (- 4)^{2}

簡素化

3^{2} + (- 4)^{2} : 25

x^{2} = f (a)

の場合, 解は

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

r = 25, r = - 25

25 = 5

- 25 = - 5

r = 5, r = - 5

グラフ

人気の例

solvefor x,(f\circ g)=(pi-x)^2-pi

so l v e f or x, (f \circ g) = (π - x)^{2} - π

3 x^{2} + 2 x^{2} = 6

quadraticformula-x^2-4x-2=0

q u a d r a t i c f or m u l a - x^{2} - 4 x - 2 = 0

solvefor x,-4x^2-4x-1=0

so l v e f or x, - 4 x^{2} - 4 x - 1 = 0

solvefor x,x^2+mx+1=mx^2+2x

so l v e f or x, x^{2} + m x + 1 = m x^{2} + 2 x