Question

solve (2^5/2)-(2^3/2)

Answer 1

not an available answer, either it is 2 or 2 with a fractional exponent, I have forgotten how to deal with addition and subtraction of fractional exponents...

Answer 2

how do you reduce the fraction 5/2 to 4 and the fraction 3/2 to 2 ?

Answer 3

(2^5)/2)-(2^3)/2)
16 - 4
12
----------------
(2^(5/2)) - (2^(3/2))
( 4 Sqrt[2]) - ( 2 Sqrt[2] )
2 Sqrt[2]

Answer 4

not an available answer... it is 2 or some power of 2...the question is: 2 raised to the power 5/2 minus 2 to the power 3/2

Answer 5

\[2^{5/2}-2^{3/2}=2^{3/2} \]

Answer 6

That is the answer, but how did you get that ?

Answer 7

see follow the rule BODMAS i.e. bracket,order,division,multiplication,addition,subtraction
now here use the exponential identity i.e.
a^m - a^n = a^(m-n)
=(2^5/2) - (2^3/2)
= 2^5/2 - 2^3/2
= 2^(5/2-3/2)
=2^2/2
=2^1
=2

Answer 8

@ fjugiwadi
I think that @ superpik123 deserves a medal if you can spare one.

Answer 9

well thanx for ur concern @robtobey