This is probably really easy, but how do I deal with questions like this with big exponents?
5^21 x 4^11 = 2 x 10^n , what is the value of n?
a) 11
b) 21
c) 22
d) 23
e) 32
many thanks
5^21 x 4^11 = 2 x 10^n , what is the value of n?
a) 11
b) 21
c) 22
d) 23
e) 32
many thanks
