Solve using the quadratic formula.2y2−5y−2=0Write your answers as integers, proper or improper fractions in simplest form, or decimals rounded to the nearest hundredth.y=_____ or y=_____
Q. Solve using the quadratic formula.2y2−5y−2=0Write your answers as integers, proper or improper fractions in simplest form, or decimals rounded to the nearest hundredth.y=_____ or y=_____
Identify values: Identify the values of a, b, and c in the quadratic equation2y2−5y−2=0. The quadratic equation is in the form ay2+by+c=0. Comparing this with our equation, we get: a=2b=−5c=−2
Substitute formula: Substitute the values of a, b, and c into the quadratic formula y=2a−b±b2−4ac. Substitute a=2, b=−5, and c=−2 into the formula. y=2⋅2−(−5)±(−5)2−4⋅2⋅(−2)y=45±25+16
Simplify and solve: Simplify the expression under the square root and solve for y. y=45±25+16 y=45±41 Now we have two possible solutions for y: y=45+41 or y=45−41
Calculate numerical values: Calculate the numerical values of y to the nearest hundredth, if necessary.First solution:y=45+41y≈45+6.40y≈411.40y≈2.85Second solution:y=45−41y≈45−6.40y≈4−1.40y≈−0.35
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