3. Write the following equations in factored form. Remember to common factor first
(if possible).
π¦ = π₯power2 β 6π₯ β 27
π¦ = (π₯ β 9)(π₯ + 3)
To factor the equation π¦ = π₯^2 - 6π₯ - 27, we can first look for a common factor among the terms. In this case, there is no common factor.
Next, we need to find two numbers that add up to -6 (the coefficient of π₯) and multiply to -27 (the constant term). After some calculations, we find that the numbers are -9 and 3.
Now we can rewrite the equation as:
π¦ = (π₯ - 9)(π₯ + 3)
So, the factored form of the equation π¦ = π₯^2 - 6π₯ - 27 is π¦ = (π₯ - 9)(π₯ + 3).