Solve using the quadratic formula.6x2−2x−4=0Write your answers as integers, proper or improper fractions in simplest form, or decimals rounded to the nearest hundredth.x=_____ or x=_____
Q. Solve using the quadratic formula.6x2−2x−4=0Write your answers as integers, proper or improper fractions in simplest form, or decimals rounded to the nearest hundredth.x=_____ or x=_____
Identify coefficients: Identify the coefficients of the quadratic equation6x2−2x−4=0. The standard form of a quadratic equation is ax2+bx+c=0. Here, a=6, b=−2, and c=−4.
Recall quadratic formula: Recall the quadratic formula, which is x=2a−b±b2−4ac. We will use this formula to find the values of x.
Substitute coefficients: Substitute the coefficients a, b, and c into the quadratic formula. This gives us x=2⋅6−(−2)±(−2)2−4⋅6⋅(−4).
Simplify equation: Simplify the equation by calculating the values inside the square root and the constants outside. This gives us x=122±4+96.
Further simplify square root: Further simplify the square root. 4+96=100=10. Now we have x=122±10.
Solve for x values: Solve for the two possible values of x. The first solution is x=(2+10)/12=12/12=1. The second solution is x=(2−10)/12=−8/12=−2/3 after simplifying the fraction.
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