Question Video: Changing the Subject of an Exponential Equation | Nagwa Question Video: Changing the Subject of an Exponential Equation | Nagwa

# Question Video: Changing the Subject of an Exponential Equation Mathematics • Second Year of Secondary School

## Join Nagwa Classes

Make π₯ the subject of the equation π¦ = 2^(ππ₯ + π), assuming that π β  0.

00:44

### Video Transcript

Make π₯ the subject of the equation π¦ equals two to the ππ₯ plus π power, assuming that π does not equal zero.

We can go from exponential form to logarithmic form, π to the π₯ power equals π. So taking our equation and using the same circle method, two to the ππ₯ plus π equals π¦. Now letβs solve for π₯. Letβs subtract π and then divide by π. So weβve subtracted π and now divide both sides by π.

Therefore, log base two of π¦ minus π divided by π is equal to π₯.

## Join Nagwa Classes

Attend live sessions on Nagwa Classes to boost your learning with guidance and advice from an expert teacher!

• Interactive Sessions
• Chat & Messaging
• Realistic Exam Questions