Q55 of 134 Page 4


Determine whether the given quadratic equation has root(s). If so, findthe root(s). y 2+ 8y + 4 = 0.


a = 1, b = 8 and c = 4
Δ = b 2 – 4ac

= (8) 2 – 4(1)(4)

= 64 – 16

= 48
Therefore the quadratic equation has real roots.


Therefore the roots are –4 – 2√3 and –4 +2√3.

More from this chapter

All 134 →
53
Determine whether the given quadratic equation has root(s). If so, find theroot(s). y 2– 4y –1 = 0.
 54
Determine whether the given quadratic equation has root(s). If so, findthe root(s). y 2– 6y+2=0.
 56
Determine whether the given quadratic equation has root(s). If so, findthe root(s). y 2+https://gs-post-images.s3.amazonaws.com/user_files/63094/15042/images/extra-4_files/Image1216.gif y – 1  =0.
57
Determine whether the given quadratic equation has root (s). If so, findthe root (s). 2y 2+ 5y -3 = 0.