# Precal grade 11

posted by
**Anonymous**
.

If 3 is one root of 2x^2 + bx + 3 =0 find the other root and the value of b.

The answers are r2=1/2 and b=-7

but i don't know how to get those.

posted by
**Anonymous**
.

If 3 is one root of 2x^2 + bx + 3 =0 find the other root and the value of b.

The answers are r2=1/2 and b=-7

but i don't know how to get those.