Question

2. Factorise the following (i) x2 - 36 (ii) 49x² – 25y2 (iv) 81-64x² (v) x+y? – 64 (vii) x²-81 (viii) 2x – 32 x5 (x) (p? - 2pq+07) - p (xi) (x + y)2 – (x - y)? ? (iii) m² - 121 (vi) 6x? – 54 (ix) 81x4 - 121x² (x) (p²-2pq+q²)-r² (xi) (x+y)-(x-y)²
please help me
last one if you can say​

Answer 1

Answer:

ab(x

2

+y

2

)−xy(a

2

+b

2

)

⇒ abx

2

+aby

2

−a

2

xy−b

2

xy

⇒ abx

2

+b

2

xy+aby

2

−a

2

xy

⇒ bx(ax−by)−ay(ax−by)

⇒ (ax−by)(bx−ay)