Step-by-step explanation:
A is the answer to the question
Answer:
(x+4)^2 =0
Step-by-step explanation:
x2 +8x+16=0
What 2 numbers multiply to 16 and add to 8
4*4 = 16
4+4 =8
(x+4) (x+4) =0
(x+4)^2 =0
Answer:
2.5
Step-by-step explanation:
8n+3+9n+7=180
17n+10=180
17n=170
Answer
N=10