Question

Write an equation that has x=3 and x=7 as its only solutions.

Do it fast thanks

Answer 1

x² - 10x + 21 = 0

Explanation:

We have to write an equation that has x = 3 and x = 7 are the only roots.

Therefore, the factors of the equation will be (x - 3) and (x - 7).

So, we can write the equation as (x - 3)(x - 7) = 0

⇒ x(x - 7) - 3(x - 7) = 0

⇒ x² - 10x + 21 = 0 (Answer)