EDGE Math 8

Find the LCM of each set of polynomials. Choose the correct answer.

3x and 4x

12x

12 x^{2}

none of the choices

Answer: 12x

2.	42y and 36y

1,512y

252y

none of the choices

Answer: 252y

3.	$35 m^{3}$ and $45 m^{2}$

315 m^{3}

315 m^{2}

5 m^{2}

none of the choices

Answer: $315 m^{3}$

4.	$2 x^{2}, 4 (x + 1), and 10 x$

10 x^{2} (x + 1)

20 x^{2} (x + 1)

10 x^{3} (x + 1)

none of the choices

Answer: $20 x^{2} (x + 1)$

5.	$x^{2} - 4, 3 (x + 2), and 1 8$

36 (x^{2} - 4)

18 (x^{2} - 4)

18 (x^{2} - 4) (x + 2)

none of the choices

Answer: $18 (x^{2} - 4)$

6.	$4 x, 3 x, and 1 2 (x + 5)$

12 x (x + 5)

12 (x + 5)

144 (x + 5)

none of the choices

Answer: $12 x (x + 5)$

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