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2 votes
Help plz help needed i need the answer

Help plz help needed i need the answer-example-1
User Nerf
by
3.8k points

2 Answers

4 votes

Answer:

The third option

Explanation:

If we rewrite this in log form, we get


e {}^(0) = {x}^(2) - 25

Remeber anything to the 0 power is 1, so simplifying the equation first


1 = {x}^(2) - 25

Add 25 to both sides


26 = {x}^(2)

Take the square root of both sides


x = √(26)

Square root are both so


x = - √(26)

Is also a answer.

The third option is the answer

User Sanityinc
by
3.5k points
3 votes

Answer:

x = ±sqrt(26)

Explanation:

ln ( x^2 -25) = 0

Raise each side to base e

e^ln ( x^2 -25) = e^0

x^2 -25 = 1

Add 25 to each side

x^2 -25 +25 = 1+25

x^2 = 26

Take the square root of each side

sqrt(x^2) = ±sqrt(26)

x = ±sqrt(26)

User Ukessi
by
3.7k points