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受欢迎的代数 >

x-4xsqrt(x)=0

解答

x - 4 x x = 0

解答

x = 0, x = \frac{1}{16}

+1

十进制

x = 0, x = 0.0625

求解步骤

x - 4 x x = 0

因式分解

x - 4 x x : - x (4 x - 1)

- x (4 x - 1) = 0

使用零因数法则： If

ab = 0

then

a = 0

or

b = 0

x = 0 or 4 x - 1 = 0

解

4 x - 1 = 0 : x = \frac{1}{16}

x = 0, x = \frac{1}{16}

验证解:

x = 0

真

, x = \frac{1}{16}

真

解为

x = 0, x = \frac{1}{16}

作图

流行的例子

6 + 3 x = 0

0 = x + 1

sqrt(2x+5)-sqrt(x+6)=1

2 x + 5 - x + 6 = 1

sqrt(2x+5)=sqrt(1-x)

2 x + 5 = 1 - x

solvefor x,sqrt(x)+y=7

so l v e f or x, x + y = 7