Q. Use the quadratic formula to solve. Express your answer in simplest form.8w2−27w+25=3wAnswer: w=
Bring to Standard Form: First, we need to bring the equation to standard quadratic form, which is ax2+bx+c=0. 8w2−27w+25=3wSubtract 3w from both sides to get:8w2−27w+25−3w=08w2−30w+25=0
Apply Quadratic Formula: Now that we have the quadratic equation in standard form, we can apply the quadratic formula to find the solutions for w. The quadratic formula is given by:w=2a−b±b2−4acwhere a=8, b=−30, and c=25.
Calculate Discriminant: Next, we calculate the discriminant, which is the part under the square root in the quadratic formula: b2−4ac.Discriminant = (−30)2−4(8)(25)Discriminant = 900−800Discriminant = 100
Find Solutions: Since the discriminant is positive, we will have two real solutions. Now we can plug the values of a, b, and c into the quadratic formula to find the solutions for w. w=2×8−(−30)±100w=1630±10
Solve for w: We will now solve for w using the two possible values for the ± sign.First solution:w=1630+10w=1640w=2.5Second solution:w=1630−10w=1620w=1.25
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