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Popular >

expand (-x-1)^2

Solution

expand

(- x - 1)^{2}

Solution

x^{2} + 2 x + 1

Solution steps

(- x - 1)^{2}

Apply Perfect Square Formula:

(a - b)^{2} = a^{2} - 2 ab + b^{2}

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

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

Simplify

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

= x^{2} + 2 x + 1

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Frequently Asked Questions (FAQ)

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