Question

Find K if m =-7/5 is a root of equation 5m×m+ 2m+k=0

Answer 1

HOPE IT HELPS ....................

Answer 2

Answer:

K=-7

Step-by-step explanation:

5m*m+2m+k=0

If m=-7/5

5(-7/5)*(-7/5)+2(-7/5)+k=0

-7*(-7/5)-14/5+k=0

(49/5)-(14/5)+k=0

So 5 is LCM

(49-14)/5+k=0

35/5+k=0

7+k=0

K=-7