Solve using the quadratic formula.2w2+4w−5=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.2w2+4w−5=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 in the form ax2+bx+c=0. For the equation 2w2+4w−5=0, the coefficients are:a = 2b = 4c = −5
Substitute into formula: Substitute the coefficients into the quadratic formula.The quadratic formula is w=2a−b±b2−4ac. Substituting the values we get:w=2(2)−(4)±(4)2−4(2)(−5)
Simplify under square root: Simplify under the square root.Calculate the discriminant b2−4ac:Discriminant = (4)2−4(2)(−5)Discriminant = 16+40Discriminant = 56
Continue with formula: Continue with the quadratic formula.Now we have:w=4−4±56
Simplify square root: Simplify the square root. 56 can be simplified to 4×14, which is 2×14. So now we have: w=4−4±2×14
Divide by 2: Simplify the equation by dividing by 2.We can divide the numerator and the denominator by 2 to simplify the expression:w=2−2±14
Write possible solutions: Write the two possible solutions for w. The two solutions are: w=2−2+14 or w=2−2−14
Round to nearest hundredth: Round the values of w to the nearest hundredth, if required.w≈(2−2+3.74) or w≈(2−2−3.74)w≈21.74 or w≈2−5.74w≈0.87 or w≈−2.87
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