Solve Using the Quadratic Formula 2x^2-3x-7=0

Problem

2*x2−3*x−7=0

Solution

1. Identify the coefficients a b and c from the quadratic equation in the form a*x2+b*x+c=0

a=2

b=−3

c=−7

2. State the quadratic formula used to find the roots of the equation.

x=(−b±√(,b2−4*a*c))/(2*a)

3. Substitute the identified values of a b and c into the formula.

x=(−(−3)±√(,(−3)2−4*(2)*(−7)))/(2*(2))

4. Simplify the expression inside the square root (the discriminant).

x=(3±√(,9+56))/4

x=(3±√(,65))/4

5. Separate the expression into the two possible solutions for x

x=(3+√(,65))/4

x=(3−√(,65))/4

Final Answer

x=(3±√(,65))/4

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