Math, asked by nandhinijonalap9qgxh, 1 year ago

78=n/2(51-3n) value of n

Answers

Answered by AbiramiLeshmi
3
sorry
the answer is
n= 4 or 13.

nandhinijonalap9qgxh: no it is 4or 13
AbiramiLeshmi: ok
Answered by suruchi7
5
78x2=n(51-3n)
156=nx3(17-n)
156/3=17n-n2
52=17n-n2
n2-17n+52=0
n2-13n-4n+52=0
n(n-13)-4(n-13)=0
(n-4)(n-13)=0
either n-4=0. ; or. n-13=0
. n=4. or. n=13.
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