x^2-65x+1050=0

解

x^{2} - 65 x + 1050 = 0

x = 35, x = 30

解答ステップ

x^{2} - 65 x + 1050 = 0

解くとthe二次式

x_{1, 2} = \frac{- ( - 65 ) \pm ( - 65 ) ^{2} - 4 \cdot 1 \cdot 1050}{2 \cdot 1}

(- 65)^{2} - 4 \cdot 1 \cdot 1050 = 5

x_{1, 2} = \frac{- ( - 65 ) \pm 5}{2 \cdot 1}

解を分離する

x_{1} = \frac{- ( - 65 ) + 5}{2 \cdot 1}, x_{2} = \frac{- ( - 65 ) - 5}{2 \cdot 1}

x = \frac{- ( - 65 ) + 5}{2 \cdot 1} : 35

x = \frac{- ( - 65 ) - 5}{2 \cdot 1} : 30

二次equationの解:

x = 35, x = 30