Question

Find the value of so that the quadratic equation (5 − 6) = 0 has two equal roots.​

Answer 1

Answer:

(5 – 6) = 4

Step-by-step explanation:

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Answer 2

Given equation mx(x−7)+49=0 if given equation has equal roots then discriminant 0=b

2

−4ac=0.

m

a

x

2

−

7

a

mx+

49

c

=0

(7m)

2

−4×m×49=0

(7m)

2

=196 m

49m

2

−196 m=0

49m(m−4)=0

m=0,4 but m



=0

∴m=4