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Popular >

expand 3(x+1)(x-1)

Solution

expand

3 (x + 1) (x - 1)

Solution

3 x^{2} - 3

Solution steps

3 (x + 1) (x - 1)

Expand

3 (x + 1) (x - 1) : 3 (x^{2} - 1)

= 3 (x^{2} - 1)

Apply the distributive law:

a (b - c) = ab - a c

3 (x^{2} - 1) = 3 x^{2} - 3 \cdot 1

= 3 x^{2} - 3 \cdot 1

Multiply the numbers:

3 \cdot 1 = 3

= 3 x^{2} - 3

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Frequently Asked Questions (FAQ)

What is expand 3(x+1)(x-1) ?
The solution to expand 3(x+1)(x-1) is 3x^2-3