Answer:
x²+6x+9=0
x²+3x+3x+9=0
x(x+3)+3(x+3)=0
(x+3)(x+3)=0
either
x+3=0
x=-3
or
x+3=0
x=-3
Step-by-step explanation:
next method
x²+6x+9=0
x²+2×x×3+3²=0
it is in formula of (x+y)²
(x+3)²=0
x+3=√0
x+3=0
x=-3
Answer:
30000-2000=28000 feet.
This is a form of subtraction to use the ground and descend to ground level.
Step-by-step explanation:
Answer:
$29.7
Step-by-step explanation:
10 percent of 27 is 2.7 then you add 27 and 2.7 and you get 29.7
Answer:
69.08
Step-by-step explanation:
22x3.14(PI)=69.08
Answer: -7
Step-by-step explanation:
