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受欢迎的代数 >

3g^2-10g-13=0

解答

3 g^{2} - 10 g - 13 = 0

解答

g = \frac{13}{3}, g = - 1

+1

十进制

g = 4.33333 \dots, g = - 1

求解步骤

3 g^{2} - 10 g - 13 = 0

使用求根公式求解

g_{1, 2} = \frac{- ( - 10 ) \pm ( - 10 ) ^{2} - 4 \cdot 3 ( - 13 )}{2 \cdot 3}

(- 10)^{2} - 4 \cdot 3 (- 13) = 16

g_{1, 2} = \frac{- ( - 10 ) \pm 16}{2 \cdot 3}

将解分隔开

g_{1} = \frac{- ( - 10 ) + 16}{2 \cdot 3}, g_{2} = \frac{- ( - 10 ) - 16}{2 \cdot 3}

g = \frac{- ( - 10 ) + 16}{2 \cdot 3} : \frac{13}{3}

g = \frac{- ( - 10 ) - 16}{2 \cdot 3} : - 1

二次方程组的解是:

g = \frac{13}{3}, g = - 1

作图

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