Please help me check my answer for the following expressions: 1) Divide the following: (x^2 + 10x + 21) divided by (x + 7) I have x^2 + 3?
2) Simplify 9/y + 3 + 2y/y + 6 I have 2y^2+15y+54/(y+3)(y+6) ?
Yep, is correct
By the way, you should use parentheses for both the numerator and the denominator.
i.e. (2y^2+15y+54)/((y+3)(y+6)).
2y^2+15y+54/(y+3)(y+6) could be interpreted as
Otherwise it's not hard to use Latex to write these problems; there's a thread on how to use it.