Question

Help? Simplify 8x^3-6=119

Answer 1

What a common factor between 6 and 8?

Answer 2

plz c my attachment

Answer 3

feel free to ask if any confusion

Answer 4

common factor is 2 right?

Answer 5

did u c my solution?

Answer 6

ohh yes thank you:) i have another question.. for radical expressions, how would you know if it's only one solution or two?

Answer 7

@niiiice yes the common factor is 2.

Answer 8

welcome @niiice

Answer 9

i think it has only one solution

Answer 10

becausr 125/8 is a positive number

Answer 11

ohh and if it's negative, there would be two solutions?

Answer 12

(-125/8)=(-5/2)*(-5/2)*(-5/2)

Answer 13

so if it is negative it has only one solution is
-5/2

Answer 14

@shamim how would you do 25x^2+5=14?
I think I did mine wrong.. I'm really confused
25x^2+5=14
(5x+5)(5x-5)=14
5x+5=14
x=9/5
(5x-5)=14
x=19/5

Answer 15

yes its wrong

Answer 16

@shamim what was my mistake?

Answer 17

u know
a^2-b^2=(a+b)(a-b)

Answer 18

nd never
a^2+b^2=(a+b)(a-b)

Answer 19

@shamim okay? so do i need to square root 25x^2+5?