Question

jo mujha ya bataya ga usko ma 100 points duanga​

Answer 1

Answer:

$( {x}^{2} - {y}^{2} ) {}^{2}$

$(x {}^{2} - 4)$

Answer 2

a) (x²-y²) (x²+y²)

→ x²(x²+y²) -y²(x²+y²)

→ x⁴+x²y²-x²y²-y⁴

→ x⁴-y⁴

b) (x+2) (x-2)

→ x(x-2) +2(x-2)

→ x²-2x+2x-4

→ x²-4

c) (2/b-5/c) (2/b+5/c)

→ 2/b(2/b+5/c) -5/c(2/b+5/c)

→ 4/b²+10/bc-10/bc-25/c²

→ 4/b²-25/c²

d) (ab+9) (ab-9)

→ ab(ab-9) +9(ab-9)

→ a²b²-9ab+9ab-81

→ a²b²-81