Class 8 Exam > Class 8 Questions > Using identity (x−a)(x+a)=x2−a2 f...
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Using identity (x − a) (x + a) = x2− a2 find 62− 52.
- a)11
- b)12
- c)10
- d)none of these
Correct answer is 'A'. Can you explain this answer?
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Verified Answer
Using identity (x−a)(x+a)=x2−a2 find 62−52.a)11b)12c...
To find: 6^2 - 5^2:
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Putting x = 6 and a = 5 in identity x^2 - a^2 = (x - a)(x+a);
=>6^2 - 5^2 = (6 - 5)(6 + 5) = 11.
Most Upvoted Answer
Using identity (x−a)(x+a)=x2−a2 find 62−52.a)11b)12c...
6²-5²
Using identity x²-b²= (x-a) (x+a)
Here x = 6 and a = 5
After substituting the values
(6-5) × (6+5)
1×11 = 11
Hope it helps :)!!!
Using identity x²-b²= (x-a) (x+a)
Here x = 6 and a = 5
After substituting the values
(6-5) × (6+5)
1×11 = 11
Hope it helps :)!!!
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Community Answer
Using identity (x−a)(x+a)=x2−a2 find 62−52.a)11b)12c...
According to the formula..
• (6-5)(6+5)=6²-5²
• (1)(11)=6²-5²
• 11 = 6²-5²
• (6-5)(6+5)=6²-5²
• (1)(11)=6²-5²
• 11 = 6²-5²
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Using identity (x−a)(x+a)=x2−a2 find 62−52.a)11b)12c)10d)none of theseCorrect answer is 'A'. Can you explain this answer?
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