Step 9 Objective
Square a linear expression, expand the product of two linear expressions of the form x ± n and simplify the corresponding quadratic expression.
- Examples of what pupils should
know and be able to do - Probing questions
- What if pupils find
this a barrier?
Examples of what pupils should know and be able to do
Multiply out and simplify:
(p – q)²
(3x + 2)²
(x + 4)(x – 3)
Solve problems such as:
Prove that the product of two odd numbers is always odd.