Question

Can someone check my answer?

Answer 1

Factored form of \[d ^{2}+18d + 81\]

I got (d + 9)^2

Answer 2

you are correct

Answer 3

Thank you :) Im going to do the others right now, would you come back in a couple minutes to check them?

Answer 4

sure I can do that

Answer 5

\[d^2-22+121\] I got (d - 11)^2
\[r^2 - 49\] I got (r - 7) (r + 7)
\[k^2 - 81h^2\] I got (k - 9h) (k + 9h)
\[25x^2 + 40x + 16\] I got (5x + 4)^2

Answer 6

for the first one, I'm assuming you meant to say

\[\Large d^2 - 22d+121\]

is that assumption correct?

Answer 7

if so, then everything looks correct

Answer 8

Yes, sorry >.<

Answer 9

it's ok

Answer 10

Thank you so much for your help, I was unsure :)

Answer 11

np