Higher June 2023 Paper 1 Q14
14 Factorise fully \(\quad 50g^2 - 18\)
(3)
| Scheme | Marks |
|---|---|
| \(2(5g + 3)(5g - 3)\) | B3 |
| (3) | |
| (3 marks) |
Notes
B3: for \(2(5g + 3)(5g - 3)\)
B2 for \(2(5g \pm 3)(5g \pm 3)\) oe eg \(2(5g - 3)^2\)
B1 for \(2(25g^2 - 9)\)
or \((10g + 6)(5g - 3)\)
or \((5g + 3)(10g - 6)\)
or \((5g + 3)(5g - 3)\)