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受欢迎的代数 >

4x^2+77=-36

解答

4 x^{2} + 77 = - 36

解答

x = \frac{113}{2} i, x = - \frac{113}{2} i

求解步骤

4 x^{2} + 77 = - 36

将

77

到右边

4 x^{2} = - 113

两边除以

4

x^{2} = - \frac{113}{4}

对于

x^{2} = f (a)

解为

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

x = - \frac{113}{4}, x = - - \frac{113}{4}

- \frac{113}{4} = \frac{113}{2} i

- - \frac{113}{4} = - \frac{113}{2} i

x = \frac{113}{2} i, x = - \frac{113}{2} i

作图

流行的例子

solvefor w,w^2+4w=0

so l v e f or w, w^{2} + 4 w = 0

9x-2-2x(3x-1)=4x^2

9 x - 2 - 2 x (3 x - 1) = 4 x^{2}

因式分解 5y^2=7y+6

f a c t or 5 y^{2} = 7 y + 6

2 s^{2} + 15 s + 40 = 0

solvefor x,x^2+10x+24=0

so l v e f or x, x^{2} + 10 x + 24 = 0