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If X^3 + 3x^2 + 3x = 7, Then X Is Equal To?

Answer»

X^3 + 3X^2 + 3x = 7

Adding both SIDE 1

=> x^3 + 3x^2 + 3x + 1= 7 +1

=> (x+1)^3=2^3

=> x+1 = 2 => x =1.

x^3 + 3x^2 + 3x = 7

Adding both side 1

=> x^3 + 3x^2 + 3x + 1= 7 +1

=> (x+1)^3=2^3

=> x+1 = 2 => x =1.



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