Solve using the quadratic formula.7f2−8f+2=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.7f2−8f+2=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 equation7f2−8f+2=0. The quadratic equation is in the form af2+bf+c=0. Comparing this with our equation, we get: a=7b=−8c=2
Substitute values: Substitute the values of a, b, and c into the quadratic formula to find f. The quadratic formula is f=2a−b±b2−4ac. Substituting the values we get: f=2⋅7−(−8)±(−8)2−4⋅7⋅2f=148±64−56
Simplify expression and fraction: Simplify the expression under the square root and the fraction. 64−56=8 So, we have: f=148±8
Simplify 8: Simplify 8 and express it in simplest radical form.8=4⋅2=2⋅2 Now we can write the solutions for f as: f=148±2⋅2
Simplify fractions: Simplify the fractions. f=74±2These are the solutions in their simplest form. If we need to express them as decimals rounded to the nearest hundredth, we calculate:f≈74+1.41 or f≈74−1.41f≈75.41 or f≈72.59f≈0.77 or f≈0.37
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