We are asked to solve for $x$ in the equation $2x^2 - 7x + 5 = \frac{x^2+3x-4}{2}$.

AlgebraQuadratic EquationsEquation SolvingFactoring
2025/5/31

1. Problem Description

We are asked to solve for xx in the equation 2x27x+5=x2+3x422x^2 - 7x + 5 = \frac{x^2+3x-4}{2}.

2. Solution Steps

First, multiply both sides of the equation by 2 to eliminate the fraction:
2(2x27x+5)=x2+3x42(2x^2 - 7x + 5) = x^2 + 3x - 4
4x214x+10=x2+3x44x^2 - 14x + 10 = x^2 + 3x - 4
Next, move all terms to the left side of the equation:
4x2x214x3x+10+4=04x^2 - x^2 - 14x - 3x + 10 + 4 = 0
3x217x+14=03x^2 - 17x + 14 = 0
Now, we can solve this quadratic equation using the quadratic formula or by factoring. Let's try factoring:
We are looking for two numbers that multiply to 314=423 \cdot 14 = 42 and add up to 17-17. Those two numbers are 3-3 and 14-14.
So, we can rewrite the middle term as 3x14x-3x - 14x:
3x23x14x+14=03x^2 - 3x - 14x + 14 = 0
Now, factor by grouping:
3x(x1)14(x1)=03x(x - 1) - 14(x - 1) = 0
(3x14)(x1)=0(3x - 14)(x - 1) = 0
Setting each factor equal to zero, we get:
3x14=03x - 14 = 0 or x1=0x - 1 = 0
3x=143x = 14 or x=1x = 1
x=143x = \frac{14}{3} or x=1x = 1

3. Final Answer

The solutions for xx are x=1x = 1 and x=143x = \frac{14}{3}.

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