Find the LCM of the pair of polynomials. 2x^2-18 and 5x^3+30x^2+45x

a) (x+3) ^2 (x-3)

b) (x-3) ^2 (x+3)

c) 10x (x+3) (x-3)

d) 10x (x+3) ^2 (x-3)

Question

Mathematics

Brooke Chung

28 November, 12:40

Find the LCM of the pair of polynomials. 2x^2-18 and 5x^3+30x^2+45x

a) (x+3) ^2 (x-3)

b) (x-3) ^2 (x+3)

c) 10x (x+3) (x-3)

d) 10x (x+3) ^2 (x-3)

+4

Answers (1)

Know the Answer?

Jennifer Fitzpatrick · Answer 1

2x^2-18 = 2 (x^2 - 9) = 2 (x-3) (x+3)

5x^3+30x^2+45x = 5x (x^2 + 6x+9) = 5x (x+3) (x+3)

LCM: Multiply each factor the greatest number of times it occurs in any of the numbers.

LCM : 2 (x-3) (x+3) * 5x (x+3)

10x (x-3) (x+3) ^2

Choice D

Find the LCM of the pair of polynomials. 2x^2-18 and 5x^3+30x^2+45xa) (x+3) ^2 (x-3)b) (x-3) ^2 (x+3)c) 10x (x+3) (x-3)d) 10x (x+3) ^2 (x-3)

Find the LCM of the pair of polynomials. 2x^2-18 and 5x^3+30x^2+45x

a) (x+3) ^2 (x-3)

b) (x-3) ^2 (x+3)

c) 10x (x+3) (x-3)

d) 10x (x+3) ^2 (x-3)