Question

for what value of m the roots of the equation x^2+mx +4 =0 are equal​

Answer 1

Answer:

m=4

Step-by-step explanation:

x^2+mc+4=0

given that, roots are equal

therefore, d=0

b^2+4ac=0

(where,a=1,b=m,c=4)

m^2+4*1*4=0

m^2+16=0

m^2=16

m=√16

m=4

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