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受欢迎的代数 >

(20010^3)/(33.72810^6)=2x^2

解答

\frac{200 \cdot 1 0 ^{3}}{33.728 \cdot 1 0 ^{6}} = 2 x^{2}

解答

x = \frac{2.9649 E 16}{1.0 E 19}, x = - \frac{2.9649 E 16}{1.0 E 19}

+1

十进制

x = 0.05445 \dots, x = - 0.05445 \dots

求解步骤

\frac{200 \cdot 1 0 ^{3}}{33.728 \cdot 1 0 ^{6}} = 2 x^{2}

交换两边

2 x^{2} = \frac{200 \cdot 1 0 ^{3}}{33.728 \cdot 1 0 ^{6}}

化简

\frac{200 \cdot 1 0 ^{3}}{33.728 \cdot 1 0 ^{6}} : \frac{1}{168.64}

2 x^{2} = \frac{1}{168.64}

两边除以

2

x^{2} = 0.00296 \dots

对于

x^{2} = f (a)

解为

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

x = 0.00296 \dots, x = - 0.00296 \dots

0.00296 \dots = \frac{2.9649 E 16}{1.0 E 19}

- 0.00296 \dots = - \frac{2.9649 E 16}{1.0 E 19}

x = \frac{2.9649 E 16}{1.0 E 19}, x = - \frac{2.9649 E 16}{1.0 E 19}

作图

流行的例子

0 = x^{2} + 5 x + 1

(117-x)(333-x)-81^2=0

(117 - x) (333 - x) - 8 1^{2} = 0

solvefor x,(2x-1)^2=9(y^2+z^2)

so l v e f or x, (2 x - 1)^{2} = 9 (y^{2} + z^{2})

solvefor b,z=-(b^2x)/y

so l v e f or b, z = - \frac{b ^{2} x}{y}

- 8 x^{2} + 10 x = 0