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  4. If 3 x-1 is a factor of the polynomial 81 x3-45 x2+ 3 a-6, then a is

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Q. If $3 x-1$ is a factor of the polynomial $81 x^3-45 x^2+$ $3 a-6$, then $a$ is

Polynomials and Square Roots of Algebraic Expressions

Solution:

Use factor theorem.