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Popular >

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

Solution

expand

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

Solution

x^{4} + x^{2} - 2

Solution steps

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

Expand

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

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

Apply FOIL method

(x^{2} - 1) (x^{2} + 2) : x^{4} + x^{2} - 2

= x^{4} + x^{2} - 2

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Frequently Asked Questions (FAQ)

What is expand (x+1)(x-1)(x^2+2) ?
The solution to expand (x+1)(x-1)(x^2+2) is x^4+x^2-2