(x^2)+4x-12=48
I Hope this is what you were looking for. If it isn't this just plug it in
x=6
Answer:
Michael is 38 and Sara is 29
Step-by-step explanation:
Because it says the sum of their age is 47 you do 47-9=38 so that would be Michael's age and than because Sara is 9 years younger than him and then you would do 38-9=29
If we factor -1/4 out of that expression it looks like this: -1/4(2x + 5)
In order to do this, we need to divide each term by that -1/4. Then use them in a parenthesis together.
(-1/2x)/(-1/4) = 2x
(-5/4)(-1/4) = 5
So we use them together at (2x + 5)
Answer:

Step-by-step explanation:
Collect 1.5 from everything, noticing that 

Now let's remember that the square of a binomial is
, confronting with what we have inside the bracket, 
Our completed bynomial becomes 