Question

factor 4x^2-9

Answer 1

difference of squares

Answer 2

...

\[a^2 -b^2 = (a+b)(a-b)\]

what in the world are you talking about @lncognlto ?

Answer 3

Apparently exactly what you are talking about... :)

Answer 4

ok well 3 is b

Answer 5

yup, so what is a?

Answer 6

2

Answer 7

almost
you're missing the variable

Answer 8

2x^2

Answer 9

nope

Answer 10

just 2x

Answer 11

\[\sqrt{4x^2} = \sqrt{4}\sqrt{x^2} =?\]

Answer 12

yes a would be 2x

Answer 13

i suggest you memorize difference of squares, its very very helpful

Answer 14

ok so far i got 2x^2-3^2 = (2x+3) (2x+3)

Answer 15

take another look at the difference of squares formula

note the addition and subtraction sign

Answer 16

i2x^2-3^2 = (2x+3) (2x-3)

Answer 17

the i shouldnt be there but yes thats correct

Answer 18

yea i messed up on my typing sorry

Answer 19

\[(2x-3)*(2x+3)\]

Answer 20

parenthesis next to parenthesis generally mean you multiply the 2 together but yes your answer is also correct @Nancy_Lam