What is the formula used in (997)²?
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Answered by
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(a+b)(a-b)=(a^2 - b^2)
Hope it helps u
Hope it helps u
Answered by
2
(a+b)^2
(997)^2
(1000-3)^2
(1000)^2+(3)^2-2×1000×3
1000000+9-6000
1000009-6000
994009
(997)^2
(1000-3)^2
(1000)^2+(3)^2-2×1000×3
1000000+9-6000
1000009-6000
994009
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