Answer:
45in.
Step-by-step explanation:
3000 s........h hours
3000/h.........1 hour
3000/60h.......1 minute
3000*m/60h....m minutes
A^2 + 2AB + B^2 = (A + B)^2 ==>
16X^2 + 40X + 25 =
= (4X)^2 + 2*4*5X + 5^2 =
= (4X + 5)^2
<span>(4x + 5)(4x + 5)</span>
