Question

simplify:
please tell faster​

Answer 1

Answer:

Using the law that xmxn = xm+n we can rewrite:

31215 as 3(1205+10)

and

31205 as 3(1205+0)

And then,

3(1205+10) as 31205×310

and

3(1205+0) as 31205×30 to end up with

31205×310 - 31205×30=x

Pull Out like Terms

At this time, we also replace 30 with 1 as per the law of exponents that x0=1

31205(310-1)=x

3^10=3×3×3×3×3×3×3×3×3×3×3=59049

31205(59049-1)=x

59048×31205=x