Question

one of the roots of the equation x2+mx-5=0 is 2 find m​

Answer 1

Answer:

x^2+mx-5=0

one of the root is 2

so putting x=2 i. the above equation

2^2+m.2-5=0

=> 4-2m-5=0

=> -2m=5-4

=> -2m=1

=> m= -1/2

Answer 2

Answer:

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