Question

Which is the most suitable identity to evaluate 497x503

Answer 1

Answer:

(a-b)(a+b)

Step-by-step explanation:

(500-3)(500+3)

500^2-3^2

250000-9

249991

Answer 2

Answer:

(500 - 3 ) ( 500 + 3)

500^2 + 500× 3 + (-3) × 500 + 3 × -(3)

250000 + 1500 - 1500 - 9

250000 - 9

= 249991

Step-by-step explanation:

hope its helpful