𝑥(𝑥+2)=5𝑥+28x(x+2)=5x+28What is the sum of the solutions to the given equation?
Question
What is the sum of the solutions to the given equation?
Given the equation:
x(x+2) = 5x + 28
Solution
To find the sum of the solutions to the given equation, we first need to solve the equation. The equation is a quadratic equation, and it can be solved by setting it to zero and factoring, completing the square, or using the quadratic formula.
The equation is: x(x+2) = 5x + 28
Step 1: Expand the left side of the equation: x^2 + 2x = 5x + 28
Step 2: Rearrange the equation to set it to zero: x^2 + 2x - 5x - 28 = 0
Step 3: Simplify the equation: x^2 - 3x - 28 = 0
Now we have a quadratic equation in the form ax^2 + bx + c = 0, where a = 1, b = -3, and c = -28.
The sum of the solutions of a quadratic equation is given by -b/a.
So, the sum of the solutions to the given equation is -(-3)/1 = 3.
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