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受欢迎的代数 >

q^2-16=0

解答

q^{2} - 16 = 0

解答

q = 4, q = - 4

求解步骤

q^{2} - 16 = 0

将

16

到右边

q^{2} = 16

对于

x^{2} = f (a)

解为

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

q = 16, q = - 16

16 = 4

- 16 = - 4

q = 4, q = - 4

作图

流行的例子

completesquare-4x^2-48x-20=0

co m pl e t es q u a re - 4 x^{2} - 48 x - 20 = 0

r^{2} + 4 r - 4 = 0

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co m pl e t es q u a re 4 x^{2} + 9

x^{2} - 40 x + 404 = 0

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