Question

factorise 25(x+y)-36(x2y)2

Answer 1

l25(x+y)2−36(x−2y)2=[5(x+y)]2−[6(x−2y)]2=[5(x+y)−6(x−2y)][5(x+y)+6(x−2y)]=[5x+5y−6x+12y][5x+5y+6x−12y]=[17y−x][11x−7y]Hence, 25(x+y)2−36(x−2y)2=[17y−x][11x−7y]

Answer 2

25x + 25y - 36 ×( x × 2y ) × 2

25x + 25y - 36 × 2xy × 2

25x + 25y - 144xy

Ans = 25x + 25y - 144xy

I hope you have got your answer

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