Select the factors of xy - 4x + 2y - 8.
(x - 2) (y + 4), (x + 2) (y - 4), (x - 4) (y + 2), (x + 4) (y - 2)
Solution:
Given:
A polynomial xy - 4x + 2y - 8
Factoring a polynomial can be done by taking out the common factors.
xy - 4x + 2y - 8
Step 1: Let us take out the common factor from the first two terms.
⇒ x (y - 4)
Step 2: Take out common factor from the last two terms.
⇒ + 2(y - 4)
Step 3: By joining these two steps, we get
x (y - 4) + 2 (y - 4)
⇒ (x + 2) (y - 4)
Therefore, the factors of xy - 4x + 2y - 8 = (x + 2) (y - 4)
Select the factors of xy - 4x + 2y - 8.
(x - 2) (y + 4), (x + 2) (y - 4), (x - 4) (y + 2), (x + 4) (y - 2)
Summary:
The selected factors of the equation are (x + 2) (y - 4).
Math worksheets and
visual curriculum
visual curriculum