Solve using the quadratic formula.8h2−5h−8=0Write your answers as integers, proper or improper fractions in simplest form, or decimals rounded to the nearest hundredth.h=_____ or h=_____
Q. Solve using the quadratic formula.8h2−5h−8=0Write your answers as integers, proper or improper fractions in simplest form, or decimals rounded to the nearest hundredth.h=_____ or h=_____
Identify values: Identify the values of a, b, and c in the quadratic equation8h2−5h−8=0. By comparing the equation to the standard form ax2+bx+c=0, we find: a=8b=−5c=−8
Substitute values into formula: Substitute the values of a, b, and c into the quadratic formula to find h. The quadratic formula is h=2a−b±b2−4ac. So we have: h=2⋅8−(−5)±(−5)2−4⋅8⋅(−8)
Simplify discriminant: Simplify the expression under the square root (the discriminant). (−5)2−4⋅8⋅(−8)=25+256=281
Continue simplifying formula: Continue simplifying the quadratic formula with the values found.h=165±281This gives us two possible solutions for h.
Calculate possible values: Calculate the two possible values for h.First solution:h=165+281Second solution:h=165−281
Round to nearest hundredth: Round the values of h to the nearest hundredth, if necessary.First solution:h≈(5+16.76)/16h≈21.76/16h≈1.36Second solution:h≈(5−16.76)/16h≈−11.76/16h≈−0.74
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