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受欢迎的代数 >

1+x^2=(37/35)^2

解答

1 + x^{2} = (\frac{37}{35})^{2}

解答

x = \frac{12}{35}, x = - \frac{12}{35}

+1

十进制

x = 0.34285 \dots, x = - 0.34285 \dots

求解步骤

1 + x^{2} = (\frac{37}{35})^{2}

展开

(\frac{37}{35})^{2} : \frac{1369}{1225}

1 + x^{2} = \frac{1369}{1225}

将

1

到右边

x^{2} = \frac{1369}{1225} - 1

化简

\frac{1369}{1225} - 1 : \frac{144}{1225}

对于

x^{2} = f (a)

解为

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

x = \frac{144}{1225}, x = - \frac{144}{1225}

\frac{144}{1225} = \frac{12}{35}

- \frac{144}{1225} = - \frac{12}{35}

x = \frac{12}{35}, x = - \frac{12}{35}

作图

流行的例子

9 x^{2} + 28 x + 50 = 0

A=(x+8)^2+(x-8)^2-(x+2)(x-2)

A = (x + 8)^{2} + (x - 8)^{2} - (x + 2) (x - 2)

2x^2-2x-30=-2x^2-19

2 x^{2} - 2 x - 30 = - 2 x^{2} - 19

因式分解-x^2-x+6=0

f a c t or - x^{2} - x + 6 = 0

- y^{2} + 8 y = 0