Answer:
She subtracted the two 10x's where instead you're supposed to add them together.
Step-by-step explanation:
Dear Kellyeasterday, 11 1/4 inches is more precise.
6x^3y^9/36x^3y^-2 The x^3 values cancel each other out leaving the 1/6
(1/6)y^9/(y^-2) the y^-2 causes the y^9 to turn into y^11 (9+2=11)
(1/6)y^11/1 the 1/6 is multiplied by y^11
y^11/6
