Answer:
as we know (x+a)(x+b)
= x^2+ab + (a+b)x
40000+42+13*200
2600+42+40000
42642
Step-by-step explanation:
206 × 207
→ (200 + 6) × (200 + 7)
We can use the algebraic identity to solve the question
Identity used :
Substituting the required values,
→ 200² + (6 + 7)200 + 6 × 7
→ 40000 + (13)200 + 42
→ 40000 + 2600 + 42
→ 42600 + 42
→ 42642
Hence, 206 × 207 = 42642
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Answers & Comments
Answer:
as we know (x+a)(x+b)
= x^2+ab + (a+b)x
40000+42+13*200
2600+42+40000
42642
Step-by-step explanation:
Verified answer
Answer:
Step-by-step explanation:
206 × 207
→ (200 + 6) × (200 + 7)
We can use the algebraic identity to solve the question
Identity used :
Substituting the required values,
→ 200² + (6 + 7)200 + 6 × 7
→ 40000 + (13)200 + 42
→ 40000 + 2600 + 42
→ 42600 + 42
→ 42642
Hence, 206 × 207 = 42642
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