60 points Math
Question 2 of 10
Select the two values of x that are roots of this equation.
2 answers:
☁️Answer☁️
The answers are -1+ square root of 7 and -1- square root of 7. In other words the answers are options B and D.
Hope this helps ;)
Answer:
Step-by-step explanation:
<u>Solve the equation by completing a square:</u>
- x² + 2x - 6 = 0
- x² + 2x + 1 - 7 = 0
- (x + 1)² = 7
- x + 1 = ±√7
- x = -1 ± √7
<u>Correct choice:</u>
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Answer:
-3 > x > 7
Step-by-step explanation:
Since the domain is the x, there are open circles, and it ends, then x could equal -3 > x > 7
For the given vectors 
and 
The dot product of vectors a and b is defined as = 
So, 
= -16+12
= -4
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