Solve for n

Solve for n in the equation =1/2

If

Find values of x and y

Rationalize the denominator of the expression

If      , find the values of a, b and c.

Solve equation       

 . Find the values of x and y if 

Simplify the expressions:

(i)       

Solve for x in the equation 9^(x?3) × 81^(1?x) = 27^?x .

  Solve for x in the equation 4^-2x × 8² = 4 × 16^x .

Find the value of given that 3^a x 5^b = 675

Without using mathematical tables, evaluate: .

Find the value of x in the equation 9x3^4x =27^(x-1) 

Rationalize the denominator of 

Use laws of exponents to simplify