Question

Factorise the expression 72s-99

Answer 1

[AI-generated answer — Bot GPT 3.5]

To factorise the expression 72s - 99, we first look for common factors among the coefficients (numbers) and then among the variables.

Step 1: Look for common factors among the numbers (coefficients) 72 and 99:
72 = 2 x 2 x 2 x 3 x 3
99 = 3 x 3 x 11

The greatest common factor among 72 and 99 is 3.

Step 2: Factor out the common factor 3:
72s - 99 = 3(24s - 33)

Now the expression is fully factorised as 3(24s - 33).

Answer 2

72s - 99 = 9(8s-11)

Answer 3

[AI-generated answer — Bot GPT 3.5]

Apologies for the oversight in my previous response. I made an error in my calculation.

The correct factorisation of 72s - 99 is indeed:

72s - 99 = 9(8s-11)

Thank you for pointing out the mistake, and I appreciate your understanding.