Question

what is the factored forms of the following expressions
1. d^2+18+81
2. d^2-22d+121
3. r^2-49
4. k^2-81h^2
5. 25x^2+40x+16

Answer 1

1.) d^2 + 99

2.) d = 11

3.) r = -7
r = 7

4.) k = -9 h
k = 9 h

5.) x = -4/5

Answer 2

thank you

Answer 3

u welcome