Solve using the quadratic formula.2f2−9f+5=0Write your answers as integers, proper or improper fractions in simplest form, or decimals rounded to the nearest hundredth.f=_____ or f=_____
Q. Solve using the quadratic formula.2f2−9f+5=0Write your answers as integers, proper or improper fractions in simplest form, or decimals rounded to the nearest hundredth.f=_____ or f=_____
Identify values: Identify the values of a, b, and c in the quadratic equation2f2−9f+5=0. The quadratic equation is in the form af2+bf+c=0. For our equation, a=2, b=−9, and c=5.
Substitute formula: Substitute the values of a, b, and c into the quadratic formula f=2a−b±b2−4ac.Here, f=2⋅2−(−9)±(−9)2−4⋅2⋅5.
Simplify terms: Simplify the terms inside the square root and the constants outside the square root.f=49±81−40.f=49±41.
Calculate square root: Calculate the square root of 41 to determine the two possible values for f.41 is an irrational number, so we will use it as is for the exact solution and then approximate it for the decimal solution.
Write possible solutions: Write the two possible solutions for f.f=49+41 or f=49−41.
Round values: If necessary, round the values of f to the nearest hundredth.f≈(9+6.40)/4 or f≈(9−6.40)/4.f≈15.40/4 or f≈2.60/4.f≈3.85 or f≈0.65.
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