What is expand (a+b+c)(a-b-c) ?

The solution to expand (a+b+c)(a-b-c) is a^2-b^2-2bc-c^2

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expand (a+b+c)(a-b-c)

expand

(a + b + c) (a - b - c)

a^{2} - b^{2} - 2 b c - c^{2}

Solution steps

(a + b + c) (a - b - c)

Distribute parentheses

= aa + a (- b) + a (- c) + ba + b (- b) + b (- c) + c a + c (- b) + c (- c)

Simplify

aa + a (- b) + a (- c) + ba + b (- b) + b (- c) + c a + c (- b) + c (- c) : a^{2} - b^{2} - 2 b c - c^{2}

= a^{2} - b^{2} - 2 b c - c^{2}

- x^{3} + x^{2}

\frac{3}{6} + \frac{1}{6}

\frac{3}{2} \times \frac{2}{3}

70 x - 40

\frac{2 ( x - y )}{x - y}

What is expand (a+b+c)(a-b-c) ?
The solution to expand (a+b+c)(a-b-c) is a^2-b^2-2bc-c^2