Find the least common multiple of x2 - 2x - 15 and x2 + 2x - 3.

(x + 5) (x + 3) (x + 1)

(x - 5) (x + 1) (x + 3)

(x - 5) (x + 3) (x - 1)

(x + 3) (x - 1) (x + 5)

z varies inversely with the product of x and y. When x = 2 and y = 4, z = 0.5

What is the value of z when x = 4 and y = 9?

40

1/9

45/2

40/9

Question

14 June, 07:15

+1

Answers (1)

Know the Answer?

Jose Rosario · Answer 1

X² - 2x - 15 ⇒ x² - 5x + 3x - 5 ⇒ (x + 3) (x - 5) LCM: (x + 3)

x² + 2x - 3 ⇒ x² + 3x - x - 3 ⇒ (x - 1) (x + 3)

The value of z is 40.

Find the least common multiple of x2 - 2x - 15 and x2 + 2x - 3.(x + 5) (x + 3) (x + 1)(x - 5) (x + 1) (x + 3)(x - 5) (x + 3) (x - 1)(x + 3) (x - 1) (x + 5)z varies inversely with the product of x and y. When x = 2 and y = 4, z = 0.5What is the value of z when x = 4 and y = 9?401/945/240/9