Answer:
64
Step-by-step explanation:
To complete the square
add ( half the coefficient of the b- term )² to b² + 16b
b² + 2(8)b + 8²
= b² + 16b + 64 = (b + 8)²
x = 4.
5x - 3.5 = 3x + 4.5
5x - 3x = 4.5 + 3.5
2x = 8
15%
6/40=3/20=.15=15%
B= x=4
3 x 3 x 3 x 3
3 x 3=9
9 x 9=81