1.
Take out a common factor of 2
Factorise:
The two numbers need to sum to the coefficient of x and multiply to the constant term in the expanded form of the quadratic.
2. cannot be factorised.
The following are the awnser choises i have for question 1.
2(x - 1)(x - 2)
(x + 1)(x + 2)
2(x - (-1))(x - (-2)) (I believe it's this one, am i correct?)
(x - (-1))(x - (-2))
The following are the awnser choises i have for question 2
(2x - i)(2x + i)
(x - 2)(x - (-2))
(x - 2i)(x - (-2i))
(x - 0)(x - 4)