Solve using the quadratic formula.w2−8w−6=0Write your answers as integers, proper or improper fractions in simplest form, or decimals rounded to the nearest hundredth.w=_____ or w=_____
Q. Solve using the quadratic formula.w2−8w−6=0Write your answers as integers, proper or improper fractions in simplest form, or decimals rounded to the nearest hundredth.w=_____ or w=_____
Identify coefficients: Identify the coefficients of the quadratic equation.The quadratic equation is given by w2−8w−6=0. We can compare this with the standard form ax2+bx+c=0 to find the coefficients.Here, a=1, b=−8, and c=−6.
Substitute into formula: Substitute the coefficients into the quadratic formula.The quadratic formula is w=2a−b±b2−4ac. Substituting the values of a, b, and c, we get:w=2⋅1−(−8)±(−8)2−4⋅1⋅(−6)w=28±64+24
Simplify and solve: Simplify under the square root and solve for w. First, we calculate the value under the square root: 64+24=88 Now, we have: w=28±88
Simplify square root: Simplify the square root, if possible.The square root of 88 can be simplified to 4×22 which is 2×22. So we have:w=28±2×22
Divide by 2: Simplify the expression by dividing by 2.We can divide both terms in the numerator by 2 to simplify the expression:w=24±22
Write final solutions: Write the final solutions.The two possible solutions for w are:w=4+22 or w=4−22To round to the nearest hundredth, we calculate the decimal values:w≈4+4.69 or w≈4−4.69w≈8.69 or w≈−0.69
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