Quadratic Equations

Quantitative Aptitude ( CCS)

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16m²+60m +14=0

8n²– 77n-30=0

m<n

m<=n

m>n

m>=n

Explanation:

16m²+60m+14=0
16m² + 56m+ 4m+14=0
8m(2m +7) + 2(2m +7)=0
(2m+7) ( 8m+2)=0
m= -7/2 , -2/8
8n²– 77n-30=0
8n² -80n+ 3n -30=0
8n( n-10) + 3(n-10)=0
(n-10) ( 8n+3)=0
n= 10, -3/8
Hence n>m

By: Amit Kumar

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