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受欢迎的代数 >

(5x+6)^2=3

解答

(5 x + 6)^{2} = 3

解答

x = \frac{3 - 6}{5}, x = \frac{- 3 - 6}{5}

+1

十进制

x = - 0.85358 \dots, x = - 1.54641 \dots

求解步骤

(5 x + 6)^{2} = 3

对于

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

解为

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

解

5 x + 6 = 3 : x = \frac{3 - 6}{5}

解

5 x + 6 = - 3 : x = \frac{- 3 - 6}{5}

二次方程组的解是:

x = \frac{3 - 6}{5}, x = \frac{- 3 - 6}{5}

作图

流行的例子

completesquare 3x^2+12x+2

co m pl e t es q u a re 3 x^{2} + 12 x + 2

x^{2} - 2 = x + 4

solvefor x,(x-12)(x+4)=9

so l v e f or x, (x - 12) (x + 4) = 9

solvefor x,3x^2+9x+4=0

so l v e f or x, 3 x^{2} + 9 x + 4 = 0

s^{2} + 5 s + 25 = 0