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3x² -15x +2x -10
3x (x-5) +2 (x-5)
(3x+2) (x-5)
2. 15p/20 + 9p/15
3p/4 + 3p/5
....../20 + ....../20
15p/20 + 12p/20
27p/20
3. 5/x+3 + 6/x+4
......../x²+7x+12 + ......./x²+7x+12
5(x+4) / x²+7x+12 + 6(x+3)/x²+7x+12
5x+20 /x²+7x+12 + 6x+18/x²+7x+12
11x+38/x²+7x+12