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x = 2 y + 6 \text { find value of find value of } x ^ { 3 } - 8 y ^ { 2 } - 36 x y - 216 |
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Answer» putting x value in eq. to be solved(2y+6)^3 -8y^2 -36 (2y+6)y -216=8y^3 -8y^2=8y^2 (y-1) |
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