Solve using the quadratic formula.2p2+8p−4=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−4=0Write your answers as integers, proper or improper fractions in simplest form, or decimals rounded to the nearest hundredth.p=_____ or p=_____
Identify values of a, b, c: Identify the values of a, b, and c in the quadratic equation2p2+8p−4=0. Compare 2p2+8p−4=0 with the standard form ax2+bx+c=0. a=2b0b1
Substitute values into quadratic formula: Substitute the values of a, b, and c into the quadratic formula p=2a−b±b2−4ac. Substitute a=2, b=8, and c=−4 into the quadratic formula. p=2⋅2−(8)±(8)2−4⋅2⋅(−4)
Simplify expression and calculate discriminant: Simplify the expression under the square root and calculate the discriminant b2−4ac.(8)2−4⋅2⋅(−4)=64+32=96
Simplify quadratic formula: Simplify the quadratic formula with the calculated discriminant.p=2⋅2−8±96p=4−8±96
Calculate two possible solutions: Calculate the two possible solutions for p.First solution:p=4−8+96Second solution:p=4−8−96
Simplify square root of 96: Simplify the square root of 96 to its simplest radical form if possible. 96 can be simplified because 96 is divisible by 16, which is a perfect square. 96=16×6 = 16×6 = 4×6
Substitute simplified square root into solutions: Substitute the simplified square root back into the solutions for p.First solution:p=4−8+46Second solution:p=4−8−46
Simplify solutions by dividing: Simplify both solutions by dividing each term by the common factor of 4.First solution:p=(−2+6)Second solution:p=(−2−6)
Round solutions if necessary: If necessary, round the solutions to the nearest hundredth.First solution:p≈−2+2.45p≈0.45Second solution:p≈−2−2.45p≈−4.45
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