Question

Find the roots x square - 2x- 10 = 0

Answer 1

Answer:

by using quadratic formula

$x = \frac{- b \frac{ + }{ - } \sqrt{ {b}^{2} - 4ac }}{2a}$

$x = \frac{- ( - 2) \frac{ + }{ - } \sqrt{ { - 2}^{2} - 4(1)( - 10)}}{2(1)}$

$x = \frac{4 + \sqrt{44} }{2} \\ x = 2 + \frac{ \sqrt{44} }{2}$

$x = \frac{4 - \sqrt{44} }{2} \\ x = 2 - \frac{ \sqrt{44} }{2}$

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Answer 2

Step-by-step explanation: