We are asked to find the roots of the equation $x^2 + \frac{13}{2}x = \frac{7}{2}x$.

AlgebraQuadratic EquationsSolving EquationsRootsFactorization
2025/3/25

1. Problem Description

We are asked to find the roots of the equation x2+132x=72xx^2 + \frac{13}{2}x = \frac{7}{2}x.

2. Solution Steps

First, we subtract 72x\frac{7}{2}x from both sides of the equation:
x2+132x72x=0x^2 + \frac{13}{2}x - \frac{7}{2}x = 0
Combine the xx terms:
x2+(13272)x=0x^2 + (\frac{13}{2} - \frac{7}{2})x = 0
x2+62x=0x^2 + \frac{6}{2}x = 0
x2+3x=0x^2 + 3x = 0
Now, we can factor out an xx:
x(x+3)=0x(x + 3) = 0
To find the roots, we set each factor equal to zero:
x=0x = 0 or x+3=0x + 3 = 0
So, x=0x = 0 or x=3x = -3.
We can check these roots in the original equation:
For x=0x = 0:
02+132(0)=72(0)0^2 + \frac{13}{2}(0) = \frac{7}{2}(0)
0+0=00 + 0 = 0
0=00 = 0, so x=0x = 0 is a root.
For x=3x = -3:
(3)2+132(3)=72(3)(-3)^2 + \frac{13}{2}(-3) = \frac{7}{2}(-3)
9392=2129 - \frac{39}{2} = -\frac{21}{2}
182392=212\frac{18}{2} - \frac{39}{2} = -\frac{21}{2}
212=212-\frac{21}{2} = -\frac{21}{2}, so x=3x = -3 is a root.

3. Final Answer

x=0,3x = 0, -3

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