Math, asked by basheerkp321, 3 months ago

Difference between two numbers is 4 and its product is 96. Find the numbers.​

Answers

Answered by ajay8949
2

let \: one \: number \: be \:  = x \\ and \: another \: number \: be \:  = y

  \:  \:  \:  \:  \:  \:  \:  \:  \: \green{ according \: to \: question}

  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: \:  \:  \:  \:  \: x - y = 4 \:  \: \:  \:  \:  \:  \:  \:  \:  \:  \: ( i)

 \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: x \times y = 96 \:  \:  \:  \:  \:  \:  \:  \:  \:  \: (ii)

 \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: from \: equation \: 1

 \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: \boxed{x = 4 + y}

substituting \: value \: of \: x \: in \: eq {n}^{2}

  \:  \:  \:  \:  \:  \:  \:  \:  \: (4 + y) \times y = 96

 \:  \:  \:  \:  \:  \:  \:  \:  \: 4y +  {y}^{2}   - 96 = 0

 \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  {y}^{2}  + 4y - 96 = 0

 \:  \:  \:  \:  \:  \:  {y}^{2}   + 12y  -  8y - 96 = 0

 \:  \:  \:  \:  \:  \:  \: y(y + 12) - 8(y + 12) = 0

 \:  \:  \:  \:  \:  \:  \:  \: (y - 8)(y + 12) = 0

 \:  \:  \:  \:  \:  \: y = 8 \: and \:  - 12

  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: \: if \: y = 8 \:  \\  so \\  \: x = 4 + 8 \\  = 12

if \:\:\:\:\:\: y =  - 12 \\ so \\ x = 4 - 12 \\  =  - 8

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