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Popular >

expand 2(x+1)(x-1)

Solution

expand

2 (x + 1) (x - 1)

Solution

2 x^{2} - 2

Solution steps

2 (x + 1) (x - 1)

Expand

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

= 2 (x^{2} - 1)

Apply the distributive law:

a (b - c) = ab - a c

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

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

Multiply the numbers:

2 \cdot 1 = 2

= 2 x^{2} - 2

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Frequently Asked Questions (FAQ)

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