Solving the Equation (2x+4)(x-4) = 0
This equation is a quadratic equation in factored form, making it relatively straightforward to solve. Here's how we can approach it:
Understanding the Zero Product Property
The core principle we use is the Zero Product Property: if the product of two or more factors is zero, then at least one of the factors must be zero.
In our case, the factors are (2x + 4) and (x - 4). To make their product equal to zero, one or both of these factors must be zero.
Solving for x
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Set each factor equal to zero:
- 2x + 4 = 0
- x - 4 = 0
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Solve each equation for x:
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2x + 4 = 0
- Subtract 4 from both sides: 2x = -4
- Divide both sides by 2: x = -2
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x - 4 = 0
- Add 4 to both sides: x = 4
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The Solutions
Therefore, the solutions to the equation (2x+4)(x-4) = 0 are x = -2 and x = 4.
These values of x make the equation true, as they make one or both of the factors equal to zero.