The partial factorization of x2 - x - 12 is modeled with algebra tiles.
Which unit tiles are needed to complete the
factorization?
+X
+
+
+
O 3 negative unit tiles
O 3 positive unit tiles
4 negative unit tiles
O 4 positive unit tiles
+X
ܐܨ܆
+X+X+X
-X
-X
-X
-
1

Xis equal to three

You move the constant to the right side and change its sign to be 9z= -6 -8. that’s the first step.the second step would be calculate the difference of -8-6 to get -14. you equation should now be 9z=-14the last step is to divide both sides by 9 to get z=-14/9hope this