Line 1:
Expanding the vertex form, we have
x² + 2·1.5x + 1.5² - 0.25 = x² +3x +2
Expanding the factored form, we have
x² +(1+2)x +1·2 = x² +3x +2
Comparing these to x² +3x +2, we find ...
• the three expressions are equivalent on Line 1
Line 2:
Expanding the vertex form, we have
x² +2·2.5x +2.5² +6.25 = x² +5x +12.5
Expanding the factored form, we have
x² +(2+3)x +2·3 = x² +5x +6
Comparing these to x² +5x +6, we find ...
• the three expressions are NOT equivalent on Line 2
The appropriate choice is
Line 1 only
The "plus x minus two x" part basically means "minus x".
So, "six minux x equals five".
This means that six minus five is x. So, x is one!
Now, let's check this in the problem: replace x with 1. Six plus one minus two ones equals five? Yes, it does!
The answer is x=1.
Answer:
third option (-3,3,5,9)
Step-by-step explanation:
domain is the starting point of the set (x coordinate )
Answer:
x = 14
I am sure of the answer :)
since the equation on the left can be rewritten :
to be 5n-10 then both sides of the equation are equal
so any real number will work
