Quick checkup on this answer.
I used the foil technique
I did w^2 * w^2 = w^4
w^2 * -5 = -5w^2
2 * w^2 = 2w^2
2 * -5 = - 10

(w^2 + 2)(w^2 -5) = w^4 -5w^2 +2w^2 -10

Is this correct?

Question

Quick checkup on this answer.
I used the foil technique 
I did w^2 * w^2 = w^4
w^2 * -5 = -5w^2
2 * w^2 = 2w^2
2 * -5 = - 10

(w^2 + 2)(w^2 -5) = w^4 -5w^2 +2w^2 -10

Is this correct?

jim_thompson5910 · Answer

you're doing great, but there's one more step

you need to combine like terms now

anonymous · Answer

Ohh..... *facepalm* i forgot, thank you very much.

jim_thompson5910 · Answer

you're welcome

what's your final answer?

anonymous · Answer

w4 -3^2 -10 right?

jim_thompson5910 · Answer

w^4 - 3w^2 - 10 I think you meant to say

if so, then you nailed it

anonymous · Answer

Haha ty :).

cggurumanjunath · Answer

*facepalm* ?

anonymous · Answer

When you slam your hand against your face because you did something wrong that was obvious , it can mean alot of things