Answer:
x = ± 
- 2
Step-by-step explanation:
x² + 4x = 4
to complete the square
add ( half the coefficient of the x- term )² to both sides
x² + 2(2)x + 4 = 4 + 4
(x + 2)² = 8 ( take square root of both sides )
x + 2 = ± ( subtract 2 from both sides )
x = ± - 2
<span>1.d
2.c
3.b
4.d
5.b
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</span>
Answer:
162
Step-by-step explanation:
The answer to question 1 is b.
The answer to question 2 is b.
The answer to question 3 is c.
The answer to question 4 is c.
The answer to question 5 is b.
The answer to question 6 is a.
The answer to question 7 is b.
The answer to question 8 is a.
The answer to question 9 is c.
The answer to question 10 is a.
