I would like to know how to solve the following problems.

1. Factirise 4squreroot3x2+5x-2squreroot3

2. Find the values of a and b so that th epolynomial x3-ax2-13x+b has (x-1) and (x-3) as factors

3. Factorise using factor theorem x3-6x2+11x-6

Hi!
Here is the answer to your question.
 
 
 
Putting b = 12 + a in (2), we get
– 9a + 12 + a = 12
⇒ – 8a = 0
a = 0
When a = 0, we get
b = 12 + 0          (using (1))
b = 12
Thus, the values of a and b are 0 and 12 respectively.
 
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