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Multiply: x^2+4y^2+z^2+2x y+x z-2y z\ b...

Multiply: `x^2+4y^2+z^2+2x y+x z-2y z\ ` by `x-2y-z`

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To multiply the expressions \( (x^2 + 4y^2 + z^2 + 2xy + xz - 2yz) \) and \( (x - 2y - z) \), we will use the distributive property (also known as the FOIL method for binomials). Here’s a step-by-step solution: ### Step 1: Write down the expressions to multiply We have: \[ (x^2 + 4y^2 + z^2 + 2xy + xz - 2yz) \cdot (x - 2y - z) \] ...
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