plzzz solve these question
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3x-4y = 5...1 To find: 27x^3 -64y^3
XY= 3
X = 3/y
3 × 3/y -4y = 5
9/y -4y = 5, 9 - 4y^2 =5
-4y^2 = 5 - 9
-4y^2 = -4
y= 1
putting this value in eq 1
solve it its easy
XY= 3
X = 3/y
3 × 3/y -4y = 5
9/y -4y = 5, 9 - 4y^2 =5
-4y^2 = 5 - 9
-4y^2 = -4
y= 1
putting this value in eq 1
solve it its easy
deeya932:
i don't know that one But that's the same
try it urself
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