Question: 1 . Find any undefined values for the variable; that is, determine values of the variable that create a zero in the denominator in the

1 . Find any undefined values for the variable; that is, determine values of the variable that create a zero in the denominator in the following rational expressions. 8x a) 3x-5 x+8 b) x2+8 3x2+2x-1 C) x2+3x-18 2. Divide by the monomials to simplify the following expressions. 12x2+15 a) 3 14x4 b) 7x3 12x3+6x2 c) 2x2 15x5-25x4-10x3+5x2 d) 5x2 3. Simplify the following rational expressions by factoring and cancelling unit fraction expressions. Make sure to keep track of values where the original expression is undefined! a) 3x2-15x x2-5x b ) 3x-12 x2-x-12 C) (x-5)(x-4)(x+3) (x2-16)(x2-25) 3x2-3x-18 d) x3-3x2-4x+12

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