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受欢迎的代数 >

8ab+6b-12a-9=0

解答

8 ab + 6 b - 12 a - 9 = 0

解答

a = - \frac{3}{4}, b = \frac{3}{2}

+1

十进制

a = - 0.75, b = 1.5

求解步骤

8 ab + 6 b - 12 a - 9 = 0

分解

8 ab + 6 b - 12 a - 9 : (4 a + 3) (2 b - 3)

(4 a + 3) (2 b - 3) = 0

使用零因数法则： If

ab = 0

then

a = 0

or

b = 0

4 a + 3 = 0 or 2 b - 3 = 0

解

4 a + 3 = 0 : a = - \frac{3}{4}

解

2 b - 3 = 0 : b = \frac{3}{2}

解为

a = - \frac{3}{4}, b = \frac{3}{2}

流行的例子

a((1)e^{-6t}-(t)6te^{-6t})=0

a ((1) e^{- 6 t} - (t) 6 t e^{- 6 t}) = 0

(x^{2} y - y) = 0

2 x (e^{\frac{y}{5}}) = 0

(x + 3) (y - 11) = 0

-e^{-y}(x^2+1)=0

- e^{- y} (x^{2} + 1) = 0