Question

solve by Quadratic questions by formula method
x2+3x-2=0​

Answer 1

Answer:

» x² + 3x - 2 = 0

» a = 1, b = 3 and c = - 2

=> x = [-b ± √(b² - 4ac)]/2

» x = [-3 ± √(9 + 8)]/2

Answer 2

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

$x = \frac{(- 3 + - \sqrt{9 - 4 \times 1 \times - 2} )}{2 \times 1}$

$x = \frac{ - 3 + - \sqrt{17} }{2}$

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