Answers

  • Brainly User
2016-03-14T05:27:11+05:30
Solution

1) Simplify 4(x−y)×2 to 8(x−y)

8(x−y)−12(x−y)(x+y)+9(x+y)×2

2) 
Simplify 9(x+y)×2 to 18(x+y)

8(x−y)−12(x−y)(x+y)+18(x+y)

3) 
Expand

8x−8y−12  x^{2}  −12xy+12yx+12  y^{2}  +18x+18y

4) 
Gather like terms

(8x+18x)+(−8y+18y)−12x2+(−12xy+12xy)+12y2

5) 
Simplify

26x+10y−12x2+12y







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