sarth

FROM A WINDOW 9M ABOVE GROUND OF HOUSE IN A STREET ANGLES OF ELEVATION AND DEPRESSION OF TOP AND FOOT OF ANOTHER HOUSE ON OPPOSITE SIDE OF STREET ARE 30DEGREE AND 60DEGREE FIND HEIGHT OF OPPOSITE HOUSE AND WIDTH OF STREET.

factorise4(x-y)^3-(x-y)

FACTORISE(2X-5)^2-5(2X-5)-14 FACTORISE4(2X-4)^3-(2X-4)

factorise 4(x-y)^3-(x-y)

help me to factorise 4(x-y)^3-(x-y)