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Solve the following quadratic equations ...

Solve the following quadratic equations by completing square method `:`
(i) `x^(2) + 8x-48=0` (ii) `x^(2) - 4x - 3 = 0 `
(iii) `9 x^(2) - 12 x + 2 = 0` (iv) `x^(2) + 8x+ 9 = 0`

Text Solution

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(i) `( 4, -12) `(ii) ` ( 2 + sqrt( 7 ), 2 - sqrt(7)) `(iii) ` ((2 + sqrt(2))/(3) , ( 2-sqrt(2))/( 3))` (iv) `( - 4 + sqrt( 7 ) , -4, - sqrt( 7))`
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