Answer:
Multiplication rule of exponents says 
hence, 2^4 • 3^4 =6^4
Step-by-step explanation:
As per the rule of exponents,
If we go by the above equation, we can deduce that x is 2 and y is 3
Thus, 2^4 *3^4 can be written as 
Hence, 2^4 • 3^4 =6^4
Answer:
x = 34
Step-by-step explanation:
ΔABD and ΔBCD are both isosceles triangles
In ΔABD
AB =AD, hence ∠ABD = ∠ADB ( base angles are equal )
∠ABD = 
= 
= 68°
∠DBC = 180° - 68° = 112° ( straight angle )
∠BCD = x = 
= 
= 34
