Question

n2 by 6 + 241n by 6 -1355=0​

Answer 1

n2/6+241n/6=1355

n2+241n/6=1355

n2+241n=1355×6 ( by CROSS MULTIPLE)

n2+241n=8130

after this

we need use formula ( =-b+-(b2-4ac)/2a)

=-(241)+-( (241)2-4(1)(8130) )/2(1)

=-241+-(58081-32520)/2

=-241+-(25561)

we do one + and second - because in formula both +- see after -b

=-241+25561 | =-241-25561

=25320 | =-25802

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