Use the quadratic formula to solve. Express your answer in simplest form.d, squared, plus, 10, d, plus, 28, equals, 3d 2 +10d+28=3
Question
Use the quadratic formula to solve. Express your answer in simplest form.d, squared, plus, 10, d, plus, 28, equals, 3d 2 +10d+28=3
Solution
The equation you've given seems to be a bit unclear. However, if you're trying to solve a quadratic equation in the form of d^2 + 10d + 28 = 3, you can rearrange it to be in the standard form of a quadratic equation (ax^2 + bx + c = 0).
The rearranged equation would be: d^2 + 10d + 25 = 0
Now, you can use the quadratic formula, which is: d = [-b ± sqrt(b^2 - 4ac)] / (2a)
In this equation, a = 1, b = 10, and c = 25.
So, substituting these values into the quadratic formula gives:
d = [-10 ± sqrt((10)^2 - 4125)] / (2*1) d = [-10 ± sqrt(100 - 100)] / 2 d = [-10 ± sqrt(0)] / 2 d = [-10 ± 0] / 2
So, the solutions are d = -10/2 = -5.
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