Answer:
(x^2+16x+63)
Step-by-step explanation:
(x^2+17x+72)-(1x+9)
(x^2+16x+63)
If this is incorrect I appologize
Answer:
441
Step-by-step explanation:
Answer:
(a) x+3
(b) 
(c) 
Step-by-step explanation:
We have given that
(a) 
From the algebraic identity we know that

So 
(b) 
We know the algebraic identity

So 
(c) We have given 
We know the algebraic identity


Answer:
![\sqrt[]{ \frac{0}{0} }](https://tex.z-dn.net/?f=%20%5Csqrt%5B%5D%7B%20%5Cfrac%7B0%7D%7B0%7D%20%7D%20)
Explainion are shown in pictures above