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Using identity (x - a) (x + a) = x2 - a2 find 52− 42.
  • a)
    12
  • b)
    14
  • c)
    9
  • d)
    none of these
Correct answer is 'C'. Can you explain this answer?
Verified Answer
Using identity (x - a)(x+a)=x2-a2 find 52−42.a)12b)14c)9d)none o...
x2 - a2 = ( x + a) (x - a) using this equation.
52 - 42 = ( 5 + 4) ( 5 - 4 )= ( 9 ) (1 )= 9 
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Most Upvoted Answer
Using identity (x - a)(x+a)=x2-a2 find 52−42.a)12b)14c)9d)none o...
x2 - a2 = ( x + a) (x - a) using this equation.
52 - 42 = ( 5 + 4) ( 5 - 4 )= ( 9 ) (1 )= 9 
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Community Answer
Using identity (x - a)(x+a)=x2-a2 find 52−42.a)12b)14c)9d)none o...
Hii friend,,,,, 👇👇👇X^2 - a ^2 = ( X + a) (X - a) using this equation. 5^2 - 4^2 = ( 5 + 4) ( 5 - 4 )= ( 9 ) (1 )= 9 Hence Correct Option is C) 9✌✌✌✌
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Using identity (x - a)(x+a)=x2-a2 find 52−42.a)12b)14c)9d)none of theseCorrect answer is 'C'. Can you explain this answer?
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