Answer:
3
Step-by-step explanation:
The expression is 
. To find the value, substitute the values x = 3 and y =-2 then follow order of operations.
To solve number eight, you would set it up as an equation equal to 180
72+7x+24=180
Next you would combine like terms 24 and 72 to get 96
Now the equation is 96+7x=180 Now, subtract 96 from 180 and then divide by seven to get x, so then x is equal to 12
Answer: (x−3)(x+7)
=(x+−3)(x+7)
=(x)(x)+(x)(7)+(−3)(x)+(−3)(7)
=x^2+7x−3x−21
=x^2+4x−21
U have to divid into the bpoth and og on answers . com
