The number is 290 because 2 is in the hundreds and 9 more in tens than ones place then has to be 0.
I don’t see a GCF or common factor so just use quadratic. 3+- Square root (9-(4))/2
X= ~2.62 or X=~.38
Here is the graph of x-y=4. According to this, the x intercept is (4,0), and the y intercept is (0,-4) :)