How do i factor 4 - 9xsquared??? please help...?

Question

please also tell me which special product factoring pattern you used...

thanks in advance!!

Answer 1

(2+3x)(2-3x)

finding the square root  

Answer 2

this is the difference of two squares:

(2-3x)(2+3x)

Answer 3

(2+3x) (2-3x)

Answer 4

(2-3x)(2+3x), using the formula for the difference of two squares

Answer 5

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

4 - 9x^2

= 4 + 6x - 6x - 9x^2

= (4 + 6x) - (6x + 9x^2)

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

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