Grade 128 grade maths
Factorise.9x^2y^2 –16 ??????????????????????????????????????
Factorise.
9x^2y^2 –16 ??????????????????????????????????????
1 Answer
Harshit Singh
Dear Student
9x^2y^2 –16
= (3xy)^2-4^2
= (3xy–4)(3xy+4)
Using Identity: x^2-y^2= (x+y)(x-y)
Thanks
9x^2y^2 –16
= (3xy)^2-4^2
= (3xy–4)(3xy+4)
Using Identity: x^2-y^2= (x+y)(x-y)
Thanks
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