Question

Order the steps to solve the equation

log(x2 - 15) = log(2x) form 1 to 5.
x2 - 2x - 15 = 0
Potential solutions are -3 and 5
10.00
x2 - 15 = 2x
X-5 = 0 or x +3=0
(x - 5)(x + 3) = 0
DONE

Answer 1

1. log(x2 - 15) = log(2x) form 1 to 5

2. 10.00 ( log(x2 - 15) - log(2x) = 0 ⇒ log(
`(x^(2)-15 )/(2x)`) = 0 ⇒
`(x^(2)-15)/(2x)` = 10^0 )

3. x2 - 15 = 2x

4. x2 - 2x - 15 = 0

5. (x - 5)(x + 3) = 0

6. X-5 = 0 or x +3=0

7. Potential solutions are -3 and 5

Answer 2

its 2 5 1 4 3 on edge 2022

Explanation: