2
is one of the
roots of equation sm² + 2m +kio
is - 7/5 • find the value of it l
is the
boot of the equation sm²
2m +12=0, put
I in the
m
S
+ 2 x
tk co
f
Ik zo
tk - o
k =
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2
Answer:
GIVEN :
5m²+2m+k=0
Here, k is unknown. Since, m = -7/5 is one root of the equation,so it will satisfy the equation..
On Putting m = -7/5 in GIVEN equation,
5m²+2m+k=0
5(-7/5)² + 2(-7/5) + k = 0
5 × (49/25) -14/5 + k = 0
49/5 -14/5 + k = 0
35/5 + k = 0
k = -35/5= -7
k = -7.
Hence,the value of k is -7.
Step-by-step explanation:
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