Determine the nature of the roots of the equation.
9x2 + 12x + 4 = 0
9x2 – 12x + 4 = 0
⇒ a = 9, b = –12 and c = 4
= (–12)2– 4(9)(4)
144 – 144
= 0
∴ b2 – 4ac > 0. hence, roots are real and equal.
1
Determine the nature of the roots of the equation.
9x2 + 12x + 4 = 0
9x2 – 12x + 4 = 0
⇒ a = 9, b = –12 and c = 4
= (–12)2– 4(9)(4)
144 – 144
= 0
∴ b2 – 4ac > 0. hence, roots are real and equal.