Solve using the quadratic formula.p2−7p+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.p2−7p+5=0Write your answers as integers, proper or improper fractions in simplest form, or decimals rounded to the nearest hundredth.p=_____ or p=_____
Quadratic Formula Coefficients: The quadratic formula is given by p=2a−b±b2−4ac, where a, b, and c are the coefficients from the quadratic equationap2+bp+c=0. In this case, a=1, b=−7, and c=5.
Calculate Discriminant: First, calculate the discriminant, which is the part under the square root in the quadratic formula: b2−4ac. Here, it is (−7)2−4(1)(5)=49−20=29.
Apply Quadratic Formula: Since the discriminant is positive, there will be two real and distinct solutions for p. Now, apply the quadratic formula with the calculated discriminant.
Calculate Solutions: Calculate the two solutions using the quadratic formula:p=2×1−(−7)±29p=27±29
Express Solutions as Decimals: The two solutions are:p=27+29 and p=27−29These cannot be simplified to integers or proper fractions, so we will express them as decimals rounded to the nearest hundredth.
Express Solutions as Decimals: The two solutions are:p = (7+29)/2 and p = (7−29)/2These cannot be simplified to integers or proper fractions, so we will express them as decimals rounded to the nearest hundredth.Calculate the decimal values:p = (7+29)/2≈(7+5.39)/2≈12.39/2≈6.20 (rounded to the nearest hundredth)p = (7−29)/2≈(7−5.39)/2≈1.61/2≈0.80 (rounded to the nearest hundredth)
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