find the value of M so that the quadratic equation mx(5x-6)= 0 has two equal roots
Answers
Answered by
139
Answer => m = 0
Step-by-step explanation:
p(x) = 5mx^2 -6mx (after opening)
Thus, wkt that a = 5m and b = 6m
thus, D => 0 = b^2 - 4ac => 36m = 0 => m = 0
the solution given by cbse is horrible and wrong so kindly do not refer to it
:)
Answered by
19
The value of M is zero
Given
- quadratic equation
- mx(5x-6)= 0
To find
- value of M so that it has equal roots.
Solution
we are provided with a quadratic equation containing a variable m and are asked to find the value of m so that the quadratic equation would have two equal roots.
mx(5x-6)= 0
or, 5mx^2 - 6mx = 0
from the above quadratic equation we can reach a conclusion that
a = 5m
b = 6m
c = 0
the condition for a quadratic equation to how equal roots is given by
b^2 - 4ac = 0
(6m)^2 - 4(6m)×0 = 0
or, 36m^2 = 0
or, m = 0
Therefore, the value of M is zero
#SPJ3
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