Question

Find the least common multiple for the given pair.

x² - 25 and x² + 10x + 25

Answer 1

@ganibl can you help me?

Answer 2

x^2 + 10x + 25
x^2 + 5x + 5x + 25
x(x + 5) + 5 (x + 5)
(x + 5)^2

Answer 3

x^2 - 35 => (x + 5) ( x - 5) Since (a+b)(a - b) = a^2 - b^2

Answer 4

12x^2y^3 and 14x^3y^2

Answer 5

Sorry its x^2 - 25 I wrote as x^2 - 35

Answer 6

Thats easy just eliminate x^2 y^2 from numerator and denominator and see what u get

Answer 7

what do you mean from numerator

Answer 8

Is it 12x^2y^3/14x^3y^2???

Answer 9

no, it is
Find the least common multiple for the given pair.

12x^2y^3 and 14x^3y^2

Answer 10

oh ok It should be 2x^2y^2 then

Answer 11

Thats the least common factor which multiplies the given terms :)

Answer 12

yeah!

Answer 13

Last one!
Find the least common multiple for the given pair.

16x^2 – 25 and 4x^2 – x - 5

Answer 14

@ganibl

Answer 15

16x^2 - 25 can be written as (4x + 5) (4x - 5) since (a+b)(a - b) = a^2 - b^2

4x^2 -x - 5 we need to simplify this

4x^2 -5x + 4x -5

x(4x - 5) + 1 (4x - 5)

(4x - 5) (x + 1)

Answer 16

So from both the common factor is 4x - 5

Answer 17

So 4x^2-5?

Answer 18

or just 4x-5?

Answer 19

Its 4x - 5

Answer 20

Okay! thank you for your help!