Question

if the equation $mx^2 + 2x + m$ has two equal roots, then find $m$ .

Answer 1

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If the equation $mx^2 + 2x + m$ has two equal roots, then find $m$ .

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Mx² + 2x + m = 0

Here,

A = m , B = 2 and C = m

Discriminant ( D ) = 0

B² - 4ac = 0

(2)² - 4m² = 0

4m² = 4

m² = 1

m = √1 = 1