Answer:
Step-by-step explanation:
If you want to factor this, you have to use the quadratic formula to do so.

For us, it looks like this:

which simplifies to

Since it breaks every mathematical rule to have a negative number under an even index radical, we have to deal with that using the imaginary "i". You should know at this point that 
so we will do a rewrite on that equation above:

which simplifies further to

This is the answer but we can separate it into its proper standard form which is
and 
<h2>
Greetings!</h2>
Answer:
If Leo is 6 and Max is 12 years older, Max is 18.
This means that max is already three years older than Leo:
6 * 3 = 18 , which is Max's age.
<h2>Hope this helps!</h2>
C= the price of a cheeseburger and l = the price of a lemonade:

Divide the second equation by -2 to begin the process of solving by elimination:

Now that we have c, 4, we can plug it in to one of the equations to find l:

So, each cheeseburger is $4 and each lemonade is $1. The final answer is:
1 cheeseburger and 2 cups of lemonade would cost $6.
Answer:
60
Step-by-step explanation:
Because 7.7^2 equals 60,
Say you have the equation 5(5x+7)=155
First you multiply 5 by everything in the parenthesis so you get 25x+35=155 then subtract 35 from both sides and get 25x=120 then 120 divided by 25 equals 4.8 so x=4.8