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受欢迎的代数 >

9(x-1)^2=7

解答

9 (x - 1)^{2} = 7

解答

x = \frac{7}{3} + 1, x = - \frac{7}{3} + 1

+1

十进制

x = 1.88191 \dots, x = 0.11808 \dots

求解步骤

9 (x - 1)^{2} = 7

两边除以

9

(x - 1)^{2} = \frac{7}{9}

对于

(g (x))^{2} = f (a)

解为

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

解

x - 1 = \frac{7}{9} : x = \frac{7}{3} + 1

解

x - 1 = - \frac{7}{9} : x = - \frac{7}{3} + 1

二次方程组的解是:

x = \frac{7}{3} + 1, x = - \frac{7}{3} + 1

作图

流行的例子

5/6 x^2-2/3 x= 1/3

\frac{5}{6} x^{2} - \frac{2}{3} x = \frac{1}{3}

solvefor y,x^3+x^2y+y^2=0

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

5 x^{2} = 36 x + 32

x^{2} - 12 x + 36 = 3 x

x^{2} + 2 x - 50 = 0