To factor the expression 9x^2 - 4, we can use the difference of squares formula, which states that a^2 - b^2 = (a + b)(a - b).
In this case, a = 3x and b = 2. So, substituting these values into the formula, we have:
9x^2 - 4 = (3x + 2)(3x - 2)
Therefore, the expression in factored form is (3x + 2)(3x - 2).
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What is the expression in factored form?
9x^2-4
1 answer