Question

Q21) Simplify the following:
1.98 x 1.98-1.02 x 1.02
0.96​

Answer 1

1.98 × 1.98 - 1.02 × 1.02 × 0.96

3.9204 - 1.02 × 1.02 × 0.96

3.9204 - 1.0404 × 0.96

3.9204 - 0.998784

2.921616

Answer 2

1.98 × 1.98 - 1.02 × 1.02 × 0.96

3.9204 - 1.02 × 1.02 × 0.96

3.9204 - 1.0404 × 0.96

3.9204 - 0.998784

2.921616