Expansion - Explanation with Area of Square (Question no. 4)

1 comment:

  1. Abhi

    Good. Very clear diagram and working to show how the evaluation of (5x-2y)^2 can be explained using the area of rectangle.

    Did you notice you write the working straightaway? A good practice would be copy the question as the first line, followed by showing the subtraction across the terms.

    On the other hand, you have not shown how to work out the answer using the FOIL method.
    Please take a picture of that working and post in the SAME post here.