Question

29. Using (a - b)" = (a? + b2 - 2ab), evaluate :
(ii) (992)²
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Answer 1

Answer:

(992)^2

= (1000 - 8 )^2

= [(1000)^2 - 2×1000×8 + (8)^2]

= ( 1000000 - 16000 + 64 )

= 984064

Answer 2

(1000-8)

Step-by-step explanation:

a² + b² - 2ab

(1000)²+(-8)²-2×1000×(-8)

1000000+64+16000

1016064

I hope the answer is correct