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受欢迎的代数 >

36q^2-333q+81=0

解答

36 q^{2} - 333 q + 81 = 0

解答

q = 9, q = \frac{1}{4}

+1

十进制

q = 9, q = 0.25

求解步骤

36 q^{2} - 333 q + 81 = 0

使用求根公式求解

q_{1, 2} = \frac{- ( - 333 ) \pm ( - 333 ) ^{2} - 4 \cdot 36 \cdot 81}{2 \cdot 36}

(- 333)^{2} - 4 \cdot 36 \cdot 81 = 315

q_{1, 2} = \frac{- ( - 333 ) \pm 315}{2 \cdot 36}

将解分隔开

q_{1} = \frac{- ( - 333 ) + 315}{2 \cdot 36}, q_{2} = \frac{- ( - 333 ) - 315}{2 \cdot 36}

q = \frac{- ( - 333 ) + 315}{2 \cdot 36} : 9

q = \frac{- ( - 333 ) - 315}{2 \cdot 36} : \frac{1}{4}

二次方程组的解是:

q = 9, q = \frac{1}{4}

作图

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