Answer:
<h3>

</h3>
Step-by-step explanation:
y= x²+6x-5
completing the square: <em> a²+2ab+b²</em> <em>= (a+b)²</em> where <em>a²=x² </em>(so <em>a=x</em>) and <em>2ab=6x </em> (so <em>b</em> would be 3):

Answer:
c
Step-by-step explanation:
Answer:EERR
Step-by-step explanation:
EERR
Answer:
12
Step-by-step explanation:
9 + 3 = 12
Where are these "hearts"?
-140 = 28 + 4(5y-2)
Use distributive property:
-140 = 28 + 20y -8
Combine like terms:
-140 = 20 + 20y
Subtract 20 from both sides:
-160 = 20y
Divide both sides by 20:
y = -160 / 20
y = -8
The answer is B) -8