Question

fctorise
25 (x+y)^2 - 16 (x-y)^2​

Answer 1

Answer:

2

5

(

+

)

2

−

1

6

(

−

)

2

25(x+y)^{2}-16(x-y)^{2}

25(x+y)2−16(x−y)2

2

5

(

+

)

(

+

)

−

1

6

(

−

)

2

Answer 2

Answer:

25(x+y)²-16(x-y)²

25(x²+y²+2xy)-16(x²+y²-2xy)

25x²+25y²+50xy-16x²-16y²+32xy

9x²+9y²+82xy

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