Hello!
You can multiply (x-12) and (x+4)
x * x = x^2
x * 4 = 4x
-12 * x = -12x
-12 * 4 = -48
Now we have
x^2 - 8x - 48 = 9
Subtract 9 from both sides
x^2 - 8x -57 = 0
Use the quadratic formula
This give use the answer of
x = 4 +

Hope this helps!
What you need to do is plug in the values of the variables, 4(4)-7, because a=4.
Next, you solve; 4(4)-7= 16-7 = 9.
In conclusion, the expression equals 9.
Answer:
9/4
Step-by-step explanation:
Answer:
ella sold 37 small prints and 15 large prints.
Step-by-step explanation:
37×50=1850
15×75=1125
1850+1125=2975
Rule is add 23
y = 11d + 13
answer is D.
y = 11d + 13