2010 · Q4
What are the factors of x2 + 4y2 + 4y-4xy-2x-8 ?
Elementary MathematicsAlgebra
- A(x-2y-4) and (x-2y + 2)
- B(x-y + 2) and (x-4y + 4)
- C(x-y+2) and (x-4y-4)
- D(x + 2y-4) and (x + 2y + 2)
Explanation
(x-2y-4)(x-2y+2) expands to x²+4y²+4y-4xy-2x-8.