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受欢迎的代数 >

2(0.06)+1.4λ^2=0.36

解答

2 (0.06) + 1.4 λ^{2} = 0.36

解答

λ = \frac{6}{35}, λ = - \frac{6}{35}

+1

十进制

λ = 0.41403 \dots, λ = - 0.41403 \dots

求解步骤

2 (0.06) + 1.4 λ^{2} = 0.36

展开

2 (0.06) + 1.4 λ^{2} : 0.12 + 1.4 λ^{2}

0.12 + 1.4 λ^{2} = 0.36

将

0.12

到右边

1.4 λ^{2} = 0.24

在两边乘以

100

140 λ^{2} = 24

两边除以

140

λ^{2} = \frac{6}{35}

对于

x^{2} = f (a)

解为

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

λ = \frac{6}{35}, λ = - \frac{6}{35}

作图

流行的例子

(5k)(10k)-2k(8k)=306

(5 k) (10 k) - 2 k (8 k) = 306

6 + 4 m^{2} = - 14 m

n^{2} + 13 n + 36 = 0

(4x-5)^2=-8x+10

(4 x - 5)^{2} = - 8 x + 10

8 x^{2} = - 8 x - 1