Solve using the quadratic formula.2y2+9y+3=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+9y+3=0Write your answers as integers, proper or improper fractions in simplest form, or decimals rounded to the nearest hundredth.y=_____ or y=_____
Quadratic Formula Explanation: The quadratic formula is given by y=2a−b±b2−4ac, where a, b, and c are the coefficients of the terms in the quadratic equationay2+by+c=0. In this case, a=2, b=9, and c=3.
Calculate Discriminant: First, calculate the discriminant, which is the part under the square root in the quadratic formula: b2−4ac. Here, it is 92−4(2)(3).
Find Discriminant Value: Perform the calculation: 81−24=57. This is the value of the discriminant.
Plug Values into Formula: Now, plug the values of a, b, and the discriminant into the quadratic formula to find the two possible values for y.y=4−9±57.
Calculate Positive Solution: Calculate the two possible solutions for y. First, the positive square root:y=4−9+57.
Positive Solution Calculation: Perform the calculation for the first solution:y≈(−9+7.55)/4y≈−1.45/4y≈−0.3625, rounded to the nearest hundredth, y≈−0.36.
Calculate Negative Solution: Now, calculate the second solution using the negative square root: y=4−9−57.
Negative Solution Calculation: Perform the calculation for the second solution:y≈(−9−7.55)/4y≈−16.55/4y≈−4.1375, rounded to the nearest hundredth, y≈−4.14.
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