The problem is to solve the quadratic equation $x^2 + 6x - 13 = 0$. We need to find the values of $x$ that satisfy this equation.

AlgebraQuadratic EquationsQuadratic FormulaSquare Roots
2025/4/15

1. Problem Description

The problem is to solve the quadratic equation x2+6x13=0x^2 + 6x - 13 = 0. We need to find the values of xx that satisfy this equation.

2. Solution Steps

We can use the quadratic formula to solve for xx. The quadratic formula is given by:
x=b±b24ac2ax = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}
In our equation, x2+6x13=0x^2 + 6x - 13 = 0, we have a=1a = 1, b=6b = 6, and c=13c = -13. Plugging these values into the quadratic formula, we get:
x=6±624(1)(13)2(1)x = \frac{-6 \pm \sqrt{6^2 - 4(1)(-13)}}{2(1)}
x=6±36+522x = \frac{-6 \pm \sqrt{36 + 52}}{2}
x=6±882x = \frac{-6 \pm \sqrt{88}}{2}
We can simplify the square root of 88:
88=422=422=222\sqrt{88} = \sqrt{4 \cdot 22} = \sqrt{4} \cdot \sqrt{22} = 2\sqrt{22}
So, our equation becomes:
x=6±2222x = \frac{-6 \pm 2\sqrt{22}}{2}
We can divide both terms in the numerator by 2:
x=3±22x = -3 \pm \sqrt{22}
The two solutions are x=3+22x = -3 + \sqrt{22} and x=322x = -3 - \sqrt{22}.

3. Final Answer

3+22,322-3 + \sqrt{22}, -3 - \sqrt{22}

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