Question

Factorise: (a²b²-1) (x²-y²) + 4abxy​

Answer 1

Answer:

(ab+1)(ab-1)(x+y)(x-y)+4abxy

Step-by-step explanation:

Expanding using the formula: $a^{2} -b^{2} =(a+b)(a-b)$

$(a^{2} b^{2} -1^{2} )(x^{2} -y^{2} )+4abxy$

$(ab+1)(ab-1)(x+y)(x-y)+4abxy$

Answer 2

Answer:

Chapter name

turn off the t.v