Question

A quadratic equation x^2+2hx+4=x has two equal roots.Find the possible values of h.

Answer 1

@UnkleRhaukus

Answer 2

for equal roots discriminant=0

Answer 3

yes

Answer 4

consider this equation
ax^2 + bx + c = 0
so
discriminat=b^-4ac=0

Answer 5

b^2-4ac=0

Answer 6

ok?

Answer 7

k

Answer 8

now in your equation
b=2h
and
c=4 just plug them in

Answer 9

Please, try to calculate the discriminant \[\Delta \] of your equation, then discuss the cases \[\Delta = 0\]

Answer 10

and a=1

Answer 11

so-\[(2h)^2-4*1*4=0\]

Answer 12

make sense?