2.5 x 2.5 =
625
62.5
0.625
6.25
2.5 x 2.5 = 6.25
Question 84 (vi)
Simplify
(2.5m+1.5q)2+(2.5m−1.5q)2
Question 4(v) Simplify: (2.5p−1.5q)2−(1.5p−2.5q)2
exercise 2.5