Question

(3) Factorize y + 7y - 12 ​

Answer 1

  y + 7y - 12

D = b^2 - 4ac = 49 + 48 = 97

By quadratic formula-

x = -b +/- root D/2a

x = $\frac{-7 + \sqrt{97} }{2} , \frac{-7 - \sqrt{97} }{2}$

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