Math, asked by duc, 1 year ago

the sum of the squares of two consecutive natural number is 41 . find rhe number

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Answers

Answered by mahasweta74
2
let the number be x other no. is x+1
atq,
x^2 + (x+1)^2=41
now break the (x+1)^2 in (a+b)^2
and then do the middle term factorization and get the answer.
IF IT HEPLS THEN PLZ MARK AS BRAINLIEST.
Answered by Anonymous
3

Answer:

Let the number be x and x + 1.

__________________....

\underline{ \large \purple{ \mathscr{\dag\:A \bf{ccording} \: to \: \mathscr {Q} \bf{uestion} ....}}}

:\implies\sf x^2 + (x + 1)^2 = 41 \\\\\\:\implies\sf 2x^2 + 2x + 1 - 41 = 0\\\\\\:\implies\sf 2x^2 + 2x + 40 = 0\\\\\\:\implies\sf x^2 + x - 20 = 0\\\\\\:\implies\sf x^2 + x - 20 = 0\\\\\\:\implies\sf x^2 + x - 20 = 0\\\\\\:\implies\sf x^2 + 5x - 4x - 20 = 0\\\\\\:\implies\sf x(x + 5) - 4(x + 5) = 0\\\\\\:\implies\sf (x + 5)(x - 4) = 0\\\\\\:\implies\underline{\boxed{\sf x = -5, 4}}

But, as we know -5 is not a natural number,

Hence, x = 4 .

So the 2 unknown numbers are :

  • x = 4 [1st number]
  • x + 1 = 4 + 1 = 5 [2nd number]
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