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受欢迎的代数 >

r^2-32=0

解答

r^{2} - 32 = 0

解答

r = 42, r = - 42

+1

十进制

r = 5.65685 \dots, r = - 5.65685 \dots

求解步骤

r^{2} - 32 = 0

将

32

到右边

r^{2} = 32

对于

x^{2} = f (a)

解为

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

r = 32, r = - 32

32 = 42

- 32 = - 42

r = 42, r = - 42

作图

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