Math, asked by singh7947, 1 year ago

if a+b=8 and ab=12 find the difference between a and b​


wardahd1234: ok

Answers

Answered by brunoconti
3

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wardahd1234: Good at maths!
Answered by kuldeep372
6

(a + b)^{2}  =  {8}^{2}  \\ (a - b) ^{2}  + 4ab = 64 \\  ({a - b})^{2}  + 4 \times 12 = 64 \\  {(a - b)}^{2}  + 48 = 64 \\  {(a - b)}^{2}  = 64 - 48 \\  {(a - b)}^{2}  = 16 \\  {(a - b)}  =  4

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