evaluate (998) square using identities
Answers
Answered by
117
(1000-2)^2
(a-b)^2
=a^2-2ab+b^2
1000^2-2×1000×2+2^2
1000000-4000+4
996004
(a-b)^2
=a^2-2ab+b^2
1000^2-2×1000×2+2^2
1000000-4000+4
996004
Answered by
121
Answer: 996004.
Step-by-step explanation: 998²
998= 1000-2
998²= (1000-2)²
(1000-2)² Using= (a-b)²= a²-2ab+b²
(1000)²-2(1000)(2)+(2)²
1000000-4000+4
996000+4
996004.
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