These are some fun maths questions. Perhaps you will like to solve them.
Questions
(1) Factorise x + x^2Y^2 - 1/(xy) - y
(2) Factorise completely 4x^2 - y^2 + 4y - 4
(3) Without using a calculator (Hint : use factorisation),
find the value of (88888)^2 - 88895 x 88881
Thank you for your kind attention.
Regards,
ahm97sic
(1) x^2(1/x+y^2) - 1/y(1/x+y^2)
= (x^2-1/y)(1/x+y^2)
(2) (2x)^2 - (y-2)^2 = (2x+y-2)(2x-y+2)
(3) let x = 88888
x^2 - (x+7)(x-7) = 49