Answer:
a^2 + 4a/b + 4/b^2
Step-by-step explanation:
Which of the following is equivalent to (a + b/2) ^2?
7y+5-8y+6
Group like terms
7y-8y+5+6
-y+11
or 11-y
Add 20ft+16ft=36ft+3.14=3.50 this is the correct answer
Assuming your first equation is y = 5x+9, the equations describe lines that are coincident.
_____
Multiplying the second equation by -1, it becomes y = 5x+9, the same as the first equation.
