Determine whether the given quadratic equation has root(s). If so, findthe root(s):4x ²+ 12x + 9 = 0.

b = 12 and

c = 9
Δ = b ² – 4ac

= 12 ² – 4(4)(9)

= 0
Therefore the quadratic equation has real and equal roots.

and

Therefore the roots are and .