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dolphi86 [110]
3 years ago
12

To factor 9x^2-4 you can first rewrite the expression as

Mathematics
2 answers:
Naddika [18.5K]3 years ago
8 0

Answer:

(3x)^2 - 2^2

Step-by-step explanation:

The given expression is 9x^2 - 4

We can write 9x^2 = 3*3*x^2 = 3^2.y^2 = (3y)^2 and 4 can be written as square of 2. 4 = 2^{2}

Therefore, we can write 9x^2 - 4 = (3x)^2 - 2^2

Now we can factor it out.

We are asked to rewrite the expression.

Therefore, the answer is (3x)^2 - 2^2

Let me factor this expression for your reference.

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

jekas [21]3 years ago
5 0

Answer: You rewrite in factor form which for this is (3x+2)(3x-2).

Step-by-step explanation:

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4 years ago
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