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Find the solutions of each of the following quadratic equations and answer the questions that follow.

x^2 + 16x + 10 = 16

What are the solutions for this quadratic equation?

A. x = -8 ± √14
B. x = 8 ± √14
C. x = -8 ± √6
D. x = 8 ± √6

1 Answer

2 votes

Final answer:

The solutions for the quadratic equation x^2 + 16x + 10 = 16 are found by rewriting it as x^2 + 16x - 6 = 0 and applying the quadratic formula, leading to approximate solutions of x = -8 ± 8.367. However, none of the options given exactly match this, so further verification is needed.

Step-by-step explanation:

To find the solutions for the quadratic equation x^2 + 16x + 10 = 16, we first need to set the equation to zero by subtracting 16 from both sides, resulting in x^2 + 16x - 6 = 0. We then apply the quadratic formula, which is x = (-b ± √(b^2 - 4ac)) / (2a), where a, b, and c are coefficients from the quadratic equation ax^2 + bx + c = 0.

The coefficients for our quadratic equation are a = 1, b = 16, and c = -6. Substituting these values into the quadratic formula gives us x = (-16 ± √(16^2 - 4(1)(-6)))/ (2(1)), which simplifies to x = (-16 ± √(256 + 24)) / 2, then to x = (-16 ± √(280)) / 2. When we simplify √(280), we get √(4*70) = √(4)*√(70) = 2√(70), which upon further simplification (√(70) is approximately 8.367), we can estimate x = (-16 ± 16.734) / 2.

Using this formula, we find that the solutions are approximately x = -8 ± 8.367. But, as none of the options match this estimation exactly, we need to verify our solutions with greater precision or by an alternative method to ensure accuracy.

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