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If x=2 & x=3 are the roots of the equation 3x2-2mx+2n=0 then find the value of m and n

Posted by Sahil Raj 6 years, 11 months ago

CBSE > Class 10 > Mathematics

2 answers

Yogita Ingle 6 years, 11 months ago

3x² - 2mx + 2n = 0
x = 2
2 (2)² - 2m(2) + 2n = 0
2(4) - 4m +2n = 0
8 - 4m + 2n = 0
4- 2m + n = 0
2m - n = 4.... (i)
x = 3
2 (3)² - 2m(3) + 2n = 0
2(9) - 6m +2n = 0
18 - 6m + 2n = 0
3m - n = 9 ...... (ii)
After solving m = 5 and n = 6.

0Thank You

Dipti Singh 6 years, 11 months ago

M=15/2 N=9

0Thank You

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