Question

Find the products using suitable identity:
1) (t –2)(t –2)
2) (3y –2z) (3y + 2z)
3) 105 × 98

Answer 1

Answer:

1. (t-2²)

2.9y²-4z²

3.10290

Answer 2

Step-by-step explanation:

1) (t –2)(t –2)

t(t-2)-2(t-2)

t²-2t-2t+4

t²-4t+4

2) (3y –2z)(3y + 2z)

9y²-4z²