x2 - y2 +6y-9 factirise
Answers
Answered by
6
Given x^2 - y^2 + 6y - 9 can be written as
= x^2 - (y^2 - 6y + 9)
= x^2 - (y - 3)(y - 3)
= x^2 - (y - 3)^2
We know that a^2 - b^2 = (a+b)(a-b)
= (x + (y - 3)) (x - (y - 3))
= (x + y - 3)(x - y + 3).
Hope this helps!
= x^2 - (y^2 - 6y + 9)
= x^2 - (y - 3)(y - 3)
= x^2 - (y - 3)^2
We know that a^2 - b^2 = (a+b)(a-b)
= (x + (y - 3)) (x - (y - 3))
= (x + y - 3)(x - y + 3).
Hope this helps!
Answered by
5
See the attached file
Attachments:
Similar questions