Solve using the quadratic formula.8v2−7v−8=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.8v2−7v−8=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: question_prompt: Solve the quadratic equation8v2−7v−8=0 using the quadratic formula.
Plug values into formula: Identify values of a, b, and c from the equation 8v2−7v−8=0. Here, a=8, b=−7, and c=−8.
Simplify square root: Plug a, b, and c into the quadratic formula v=2a−b±b2−4ac. So, v=2⋅8−(−7)±(−7)2−4⋅8⋅(−8).
Calculate two solutions: Simplify inside the square root: 49+256. This is 305.
First solution calculation: Now we have v=167±305. Calculate the two possible solutions for v.
Second solution calculation: First solution: v=167+305.
Approximate square root: Second solution: v=167−305.
Calculate approximate solutions: Approximate the square root of 305 to the nearest hundredth: 305≈17.46.
First approximate solution: Calculate the approximate solutions: v≈(7+17.46)/16 and v≈(7−17.46)/16.
Second approximate solution: First approximate solution: v≈1624.46. This simplifies to v≈1.53.
Second approximate solution: First approximate solution: v≈1624.46. This simplifies to v≈1.53. Second approximate solution: v≈16−10.46. This simplifies to v≈−0.65.
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