Question

if a+b=4 and ab=-12,find (i)a-b​

Answer 1

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Answer 2

Answer:

Multiples of -12 are: (1*-12), (2*-6), (3*-4), (-1*12), (-2*6) and (-3*4).

Out of these, only (-2 and 6) gives (-2+6)=4 and (-2*6)=12.

Now,  A/q

(-2-6)= -8

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