Q. Use the quadratic formula to solve. Express your answer in simplest form.8t2−19t+12=4t2Answer: t=
Set Equation to Zero: First, we need to set the equation to zero by subtracting 4t2 from both sides of the equation.8t2−19t+12−4t2=0This simplifies to:4t2−19t+12=0
Apply Quadratic Formula: Now we can apply the quadratic formula to solve for t. The quadratic formula is given by:t=2a−b±b2−4acwhere a, b, and c are the coefficients from the quadratic equationat2+bt+c=0.In our equation, a=4, b=−19, and c=12.
Calculate Discriminant: Next, we calculate the discriminant, which is the part under the square root in the quadratic formula: b2−4ac.Discriminant = (−19)2−4(4)(12)Discriminant = 361−192Discriminant = 169
Find Solutions: Since the discriminant is positive, we will have two real solutions. We can now plug the values of a, b, and the discriminant into the quadratic formula to find the solutions for t. t=2×4−(−19)±169 t=819±13
Two Real Solutions: We will have two solutions, one for the addition and one for the subtraction:t1=819+13t1=832t1=4t2=819−13t2=86t2=43
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