What is expand (2a-b-c)(2a-b+c) ?

The solution to expand (2a-b-c)(2a-b+c) is 4a^2-4ab+b^2-c^2

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expand (2a-b-c)(2a-b+c)

expand

(2 a - b - c) (2 a - b + c)

4 a^{2} - 4 ab + b^{2} - c^{2}

Solution steps

(2 a - b - c) (2 a - b + c)

Distribute parentheses

= 2 a \cdot 2 a + 2 a (- b) + 2 a c - b \cdot 2 a - b (- b) - b c - c \cdot 2 a - c (- b) - cc

Simplify

2 a \cdot 2 a + 2 a (- b) + 2 a c - b \cdot 2 a - b (- b) - b c - c \cdot 2 a - c (- b) - cc : 4 a^{2} - 4 ab + b^{2} - c^{2}

= 4 a^{2} - 4 ab + b^{2} - c^{2}

\frac{sin ( θ )}{csc ( θ )}

\frac{2 x ^{2} - x - 1}{x ^{2} - 9} \cdot \frac{x + 3}{2 x + 1}

8 - 2 x^{2} + 6 + 7 x^{3} - 3 x^{4} + 16

(\frac{1}{3})^{- 1} + (\frac{1}{2})^{- 1} + (\frac{1}{5})^{- 1}

\frac{x}{x 2}

What is expand (2a-b-c)(2a-b+c) ?
The solution to expand (2a-b-c)(2a-b+c) is 4a^2-4ab+b^2-c^2