Solve using the quadratic formula.9h2+9h+2=0Write your answers as integers, proper or improper fractions in simplest form, or decimals rounded to the nearest hundredth.h=_____ or h=_____
Q. Solve using the quadratic formula.9h2+9h+2=0Write your answers as integers, proper or improper fractions in simplest form, or decimals rounded to the nearest hundredth.h=_____ or h=_____
Identify values: Identify the values of a, b, and c in the quadratic equation9h2+9h+2=0. The quadratic equation is in the form ah2+bh+c=0, so by comparison: a=9b=9c=2
Substitute formula: Substitute the values of a, b, and c into the quadratic formula.The quadratic formula is h=2a−b±b2−4ac.Substituting the values we get:h=2⋅9−(9)±(9)2−4⋅9⋅2
Simplify discriminant: Simplify the expression under the square root (the discriminant).Calculate the discriminant: (9)2−4⋅9⋅2= 81−72= 9
Continue formula simplification: Continue simplifying the quadratic formula with the calculated discriminant.h=18−9±9Since 9=3, we have:h=18−9±3
Find possible values: Find the two possible values for h. First solution: h=(−9+3)/18 h=−6/18 h=−1/3 Second solution: h=(−9−3)/18 h=−12/18 h=−2/3
Simplify fractions: Simplify the fractions and if necessary, round to the nearest hundredth. The fractions are already in simplest form, so rounding to the nearest hundredth is not necessary. h=−31 or h=−32
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