What is expand (3x-2y-z)(3x-2y+z) ?

The solution to expand (3x-2y-z)(3x-2y+z) is 9x^2-12xy+4y^2-z^2

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expand (3x-2y-z)(3x-2y+z)

expand

(3 x - 2 y - z) (3 x - 2 y + z)

9 x^{2} - 12 x y + 4 y^{2} - z^{2}

Solution steps

(3 x - 2 y - z) (3 x - 2 y + z)

Distribute parentheses

= 3 x \cdot 3 x + 3 x (- 2 y) + 3 x z - 2 y \cdot 3 x - 2 y (- 2 y) - 2 yz - z \cdot 3 x - z (- 2 y) - zz

Simplify

3 x \cdot 3 x + 3 x (- 2 y) + 3 x z - 2 y \cdot 3 x - 2 y (- 2 y) - 2 yz - z \cdot 3 x - z (- 2 y) - zz : 9 x^{2} - 12 x y + 4 y^{2} - z^{2}

= 9 x^{2} - 12 x y + 4 y^{2} - z^{2}

\frac{1 - 2 i}{3 - 2 i}

36 b^{2} - 9

81 x^{2} - 400 y^{4}

4 x^{2} + 20 x + 3 y x + 15 y

56 \div 14

What is expand (3x-2y-z)(3x-2y+z) ?
The solution to expand (3x-2y-z)(3x-2y+z) is 9x^2-12xy+4y^2-z^2