Question
Simphfy \( \frac{2^{2 x}-9}{2^{x}+3} \)
Ask by Coles Hamilton. in South Africa
Jan 23,2025
Real Tutor Solution
Tutor-Verified Answer
Answer
The simplified expression is \(2^x - 3\).
Solution
Sign in to Unlock Answers for Free!
A Learning Platform Trusted by Millions of Real Students and Teachers.
Unlock
Reviewed and approved by the UpStudy tutoring team
Like
Bonus Knowledge
To simplify the expression \( \frac{2^{2 x}-9}{2^{x}+3} \), notice that \( 2^{2x} = (2^x)^2 \). So, we can rewrite it as \( \frac{(2^x)^2 - 9}{2^x + 3} \). Now, observe that \( (2^x)^2 - 9 \) can be factored using the difference of squares formula: \[ \frac{(2^x - 3)(2^x + 3)}{2^x + 3} \] We can cancel \( 2^x + 3 \) from the numerator and denominator (assuming \( 2^x + 3 \neq 0 \)), yielding: \[ 2^x - 3 \] So, the simplified form of the expression is \( 2^x - 3 \).