factorise X square + 2 x y plus y squared minus 4
Attachments:
Answers
Answered by
12
x^2+2xy+y^2-4
(x+y)^2 - 4. [a^2+2ab+b^2=(a+b)^2]
(x+y)^2 - 2^2. [a^2-b^2=(a+b)(a-b)]
(x+y-2)(x+y+2)
hope this helps:p
(x+y)^2 - 4. [a^2+2ab+b^2=(a+b)^2]
(x+y)^2 - 2^2. [a^2-b^2=(a+b)(a-b)]
(x+y-2)(x+y+2)
hope this helps:p
mysticd:
put = symbol wherever needed
Answered by
11
your required answer is4(x+y)
Attachments:
u did a mistake
it is -4 not +4
Similar questions