1) Which one of the following is the LCD of: 1/4x2; 1/2x; 1/2xy a) 16x2 b) 4x2 c) 4x2y d) 2x2y 2) Which one of the following is the LCD of: 1/(x+2); 1/(x2+2) a) (x+2)2 b) (x2+2) c) (x2+4) d) (x+2)(x2+2) 3) Which one of the following is the LCD of: 1/2; 1/3; 1;4 a) 12 b) 6 c) 3 d) 4 4) Which one of the following is the LCD of: 1/4; 1/4x; 1/2 a) 4 b) 4x c) 2 d) 8x 5) Which one of the following is the LCD of: 1/(4x+4); 1/4x; 1/(x+4); 1/4(x+1) a) 4x(x+4)(x+1) b) (4x+4)(x+4) c) 4x(4x+4)(x+4) d) 4x(x+4) 6) Which one of the following is the LCD of: 1/3; 1/5; 1/x; 1/5x? a) 15 b) 5 c) 5x d) 15x 7) Which one of the following is the LCD of: 1/(2x+x); 1/(x+1); 1;(x-1) a) 2(x+1)2 b) (2x+x)(x+1)(x-1) c) 2(x+1)(x-1) d) (2x+x)(x2-1) 8) Which one of the following is the LCD of: 1/5x; 1/2x2; 1/10y a) 10xy b) 10x2y c) 5x2y d) 10y 9) Which one of the following is the LCD of: 1/(x-1); 1/(x+3) a) (x-1)(x+3) b) x2+2x-3 c) x-3 d) x2+2 e) 2x+2 10) Which one of the following is the LCD of: 1/2b; 1/(2+b); 1/(2-b) a) 2b b) 2b(4-b2) c) 2b(2+b)(2-b) d) 2b(4-2b-b2)

Identifying the LCD

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