Solve using the quadratic formula.2p2−8p−5=0Write your answers as integers, proper or improper fractions in simplest form, or decimals rounded to the nearest hundredth.p=_____ or p=_____
Q. Solve using the quadratic formula.2p2−8p−5=0Write your answers as integers, proper or improper fractions in simplest form, or decimals rounded to the nearest hundredth.p=_____ or p=_____
Identify coefficients: Identify the coefficients a, b, and c in the quadratic equation2p2−8p−5=0.a=2, b=−8, c=−5
Write quadratic formula: Write down the quadratic formula: p=2a−b±b2−4ac.
Substitute values: Substitute the values of a, b, and c into the quadratic formula.p=2⋅2−(−8)±(−8)2−4⋅2⋅(−5)
Calculate discriminant: Simplify the equation by calculating the discriminant b2−4ac.Discriminant = (−8)2−4⋅2⋅(−5)=64+40=104
Insert discriminant: Insert the discriminant back into the quadratic formula. p=48±104
Simplify square root: Simplify the square root of the discriminant if possible. 104 cannot be simplified to an integer, so we keep it as is.
Calculate possible solutions: Calculate the two possible solutions for p.p=48+104 or p=48−104
Round values: Round the values of p to the nearest hundredth, if required.p≈(8+10.20)/4 or p≈(8−10.20)/4p≈18.20/4 or p≈−2.20/4p≈4.55 or p≈−0.55
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