Question

How to factor 10x2-80

Pls list steps

Answer 1

\[10x^{2} - 80\]

Answer 2

well do you know what 10^2 is

Answer 3

well its 10 x 10 = 100

Answer 4

100

Answer 5

Yea lol

Answer 6

so now the problem is 100 - 80

Answer 7

but thats not factoring

Answer 8

ok it's 20.

Answer 9

ohh

Answer 10

https://www.symbolab.com/solver/algebra-calculator/10%5E%7B2%7D-80/?origin=button this may help if not im sorry

Answer 11

Its 10(x^2-8)

Answer 12

Its alright :) thanks

Answer 13

ok i can help with that if you still need help

Answer 14

let me give some a try, give me a min

Answer 15

@chinadayyy 16x^2-4

Answer 16

ok is this factoring again?

Answer 17

yup

Answer 18

@haleyelizabeth2017

Answer 19

\[16(x^{2}-4)\]

Step one:Use distributive property
16 times x to the power of 2=16x^2
16 times 4=64
16x^2-64

Answer 20

Eli

Answer 21

So for 16x^2-4 I got (4x-2) (4x+2)

Answer 22

That is one way to do it

Answer 23

But, that's not the simplest form.

Answer 24

for 4x^2-25 i got (2x-5) (2x+5)

Answer 25

It isn't?

Answer 26

Yes :)

Answer 27

and no

Answer 28

Explain ? pls :)

Answer 29

For \(16x^2-4\) the simplest form would be 4(2x-1)(2x+1)

Answer 30

because you would get \(4(4x^2-1)\) which \(4x^2-1\) turns into (2x-1)(2x+1)

Answer 31

So, then you move the four back and get 4(2x-1)(2x+1)

Answer 32

OHH I see it..

Answer 33

:)