Solve Each of the Following Quadratic Equations: x2+2√2x−6=0
Solution:
To solve the quadratic equation x2 + 2√2x - 6 = 0, we can use the quadratic formula. The quadratic formula states that for an equation of the form ax2 + bx + c = 0, the solutions for x can be found using the formula:
x = (-b ± √(b2 - 4ac)) / (2a)
In this case, a = 1, b = 2√2, and c = -6. Let's substitute these values into the quadratic formula and solve for x:
x = (-(2√2) ± √((2√2)2 - 4(1)(-6))) / (2(1))
Simplifying further:
x = (-2√2 ± √(8 + 24)) / 2
x = (-2√2 ± √32) / 2
x = -√2 ± 2√2
Now, let's simplify the solutions:
x1 = -√2 + 2√2 = √2 (approx. 1.414)
x2 = -√2 - 2√2 = -3√2 (approx. -4.243)
Answer:
Solutions to the Quadratic Equation x2 + 2√2x - 6 = 0 are x = √2 (or 1.414) and x = -3√2 (or -4.243)
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