2x - 3y is a factor of?
Answer & explanation
Correct answer: option 4
The correct answer is Option 4: 4x2 + 2x - 3y + 9y2 - 12xy
4x2 + 2x - 3y + 9y2 - 12xy
we can write it as:
⇒ 4x2 - 12xy + 9y2 + 2x - 3y
⇒ (4x2 - 12xy + 9y2 + (2x - 3y)
⇒ (2x - 3y)2 + (2x - 3y)
Take 2x - 3y common, we get
⇒ (2x - 3y){2x - 3y + 1}
Here, 2x - 3y is the factor. Hence, option 4 is right answer.