Solve using the quadratic formula.8v2+8v−5=0Write your answers as integers, proper or improper fractions in simplest form, or decimals rounded to the nearest hundredth.v=_____ or v=_____
Q. Solve using the quadratic formula.8v2+8v−5=0Write your answers as integers, proper or improper fractions in simplest form, or decimals rounded to the nearest hundredth.v=_____ or v=_____
Identify values of a, b, c: Identify the values of a, b, and c in the quadratic equation8v2+8v−5=0. Compare 8v2+8v−5=0 with the standard form ax2+bx+c=0. a=8b0b1
Substitute into quadratic formula: Substitute the values of a, b, and c into the quadratic formula v=2a−b±b2−4ac. Substitute a=8, b=8, and c=−5 into the quadratic formula. v=2⋅8−(8)±(8)2−4⋅8⋅(−5)
Simplify expression and calculate discriminant: Simplify the expression under the square root and calculate the discriminant b2−4ac.(8)2−4⋅8⋅(−5) = 64+160 = 224
Simplify quadratic formula: Simplify the quadratic formula with the calculated discriminant.v=2⋅8−8±224v=16−8±224
Calculate possible solutions: Calculate the two possible solutions for v.v=16−8+224 or v=16−8−224
Simplify square root: Simplify the square root 224 and express it in simplest radical form if possible.224 can be simplified to 16×14 which is 4×14.So, v=16−8+4×14 or v=16−8−4×14
Simplify fractions: Simplify the fractions. v=(−21+414) or v=(−21−414)
Round values if required: Round the values of v to the nearest hundredth, if required.v≈−0.5+414 or v≈−0.5−414v≈−0.5+1.87 or v≈−0.5−1.87v≈1.37 or v≈−2.37
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