MCQ
If $x = a + b$ then $= 2^x + 2^a.2^b =$
- ✓$2(2^a + b)$
- B$2^{a + b} + 2^{ab}$
- C$2^{2a + 2ab}$
- D$2^{a + b + 1}$
✓
Answer
Correct option: A.
$2(2^a + b)$
Given: $x = a + b 2^x + 2^a⋅2^b = ?$
So. $2^{a + b}+ 2^a+ 2^b⇒ 2^{a + b} + 2^{a + b}$ (according to exponent product rule)
$⇒ 2(2^{a + b})$
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