Question

3. Find the products using suitable identity:

a) (t –2)(t –2) b) (3y –2z) (3y + 2z) c) 105 × 98v

Answer 1

a) t²- 4x + 4

b) 9y² - 4z

c) 10290v

Explanation:

a+b) use identity (ax+b)(ax+c) = ax² + (b+c)x + bc

c) a × bx = abx