Answer:
B) ( x+3)² - 5
Step-by-step explanation:
Given expression
x²+6x+4
Adding '9' and subtracting '9' of given expression
⇒ x² + 2 (3) (x) +(3)² -(3)² +4
(a + b)² = a² + 2 a b + b²
⇒ ( x+3)² - 9 +4
⇒ ( x+3)² -5
I'm assuming you're subtracting. It would be 3.9. The second one would be 0.65.
1. Subtract 8 from both sides
2. Simplify to get x= -23
Answer:
b. using a sample of size 40
Step-by-step explanation:
edg 2020