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Solve the equation x^(3)  12^(2) +39x 28 = 0
if the roots are in arithmetic progression.



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mukushla
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let the roots be \(ab\) , \(a\) and \(a+b\) since they are in AP

mukushla
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now use the formula for sum and product of roots

aceace
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ahhh i think i have the right answer... is it 1, 4, and 7

mukushla
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let me solve and check

mukushla
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exactly :)

aceace
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thank you !