What is the expression in factored form? Explained
9x^2 - 4
The expression 9x^2 - 4 can be factored as (3x - 2)(3x + 2).
To explain the factoring process, we look for two numbers that multiply to give 9x^2 (-4) and add to give 0.
The factors of 9x^2 are 3x and 3x. The factors of -4 are 2 and -2.
To get the middle term of 0 when we combine the factors, we use -2 and +2.
So, we have (3x - 2)(3x + 2) as the factored form of 9x^2 - 4.