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2x^2+9x+6=0 Solve the quadratic

1 Answer

5 votes

Answer:


x1 = ( - 9 - √(33) )/(4)


x2 = ( - 9 + √(33) )/(4)

Explanation:


2 {x}^(2) + 9x + 6 = 0

a = 2, b = 9, c = 6


d = {b}^(2) - 4 * a * c = {9}^(2) - 4 * 2 * 6 = 81 - 48 = 33 > 0


x1 = ( - b - √(d) )/(2a) = ( - 9 - √(33) )/(4)


x2 = ( - b + √(d) )/(2a) = ( - 9 + √(33) )/(4)

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