Order the steps to solve the equation log(x^2-15)=log(2x) form 1 to 5
1 answer:
Answer:x=-5 and x=3
Step-by-step explanation:
log(x^2-15)=log(2x)
Cancel log at both sides we get
x^2-15=2x
Collect like terms
x^2-2x-15=0
x^2-3x+5x-15=0
x(x-3)+5(x-3)=0
(x+5)(x-3)=0
x+5=0 x-3=0
x=-5 x=3
You might be interested in
Answer:
0.5 > 0.25
Step-by-step explanation:
2/8 = 1/4 = 0.25
1/2 = 0.5
It would be 5 tens + 4 tens = 9 tens
Answer:
5 units
Step-by-step explanation:
Count the boxes between C and D
Answer:
x<7.5
Step-by-step explanation: