Question

Simplify (2t − 9) + (13t2 − 5) + (t + 1)
16t4 − 13
16t2 − 13
13t2 + 2t2 − 13
13t2 + 3t − 13

Answer 1

Remove the brackets. They're of no use here. Then combine the like terms.

Answer 2

(2t − 9) + (13t^2 − 5) + (t + 1)
= 2t - 9 + 13t^2 - 5 + t + 1
= 13t^2 + 2t + t - 9 -5 + 1
= Can you simplify it?

Answer 3

is it the third one

Answer 4

Yes.