Question

If 2x = 3y - 5, then find the value of 8x3 -27y3 -90xy + 125

Answer 1

Answer:

2x-3y=-5

cubing both sides

8x^3-27y^3-3×2x × -3y(-5)= -125

8x^3-27y^3-90xy+125=0

Answer 2

Step-by-step explanation:

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