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受欢迎的代数 >

2z^2-22=0

解答

2 z^{2} - 22 = 0

解答

z = 11, z = - 11

+1

十进制

z = 3.31662 \dots, z = - 3.31662 \dots

求解步骤

2 z^{2} - 22 = 0

将

22

到右边

2 z^{2} = 22

两边除以

2

z^{2} = 11

对于

x^{2} = f (a)

解为

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

z = 11, z = - 11

作图

流行的例子

6 (x - 5) (x - 4) < 0

6 x + 5 < - 25

((x+5)(2x-7))/((x+1)^2)<= 0

\frac{( x + 5 ) ( 2 x - 7 )}{( x + 1 ) ^{2}} \leq 0

因式分解 u^2-10u+25

f a c t or u^{2} - 10 u + 25

因式分解 5t+30

f a c t or 5 t + 30