Posted by ant on .
what are the factor of the following trinomial?
3t^2 + 19t + 6
a) (t + 1)(3t + 6)
b) (3t + 1)(t + 6)
c) (t  1) (3t + 6)
d) (3t  1) (t + 6)

algebra 
MathMate,
If we note that 19=3*6+1*1, we would choose the answer where all signs are positive, and which gives the term 18t².

algebra 
Julia Brown,
Look at answer (b).
Step 1.
Multiply 3t by t
Step 2.
Multiply 3t by 6
Step 3.
Multiply 1 by t
Step 4.
Multiply 1 by 6
That gives you
3t^2+18t+t+6
Step 5.
End Result
3t^2 + 19t + 6