1. (a) Without using tables or calculator, simplify: (√75 - √48) / √3, leaving your answer in the simplest form. [4 marks]

(b) Given that log₂(x + 3) + log₂(x - 1) = 5, find the value(s) of x. [6 marks]

(c) If 2^(2x) - 5(2^x) + 4 = 0, find the value(s) of x. [5 marks]

Question

1. (a) Without using tables or calculator, simplify: (√75 - √48) / √3, leaving your answer in the simplest form. [4 marks]

(b) Given that log₂(x + 3) + log₂(x - 1) = 5, find the value(s) of x. [6 marks]

(c) If 2^(2x) - 5(2^x) + 4 = 0, find the value(s) of x. [5 marks]

Accepted Answer

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Answer

A) null

Answer

B) null

Answer

C) null

Answer

D) null

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