Question

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Answer 1

★ Answer ★

ATQ, We need to add these given 3 polynomials and get the correct solution and mark the correct option.

So, (x - y + xy) + (y + z - yz) + (z - x - xz)

= x - y + xy + y + z - yz + z - x - xz

= x - x - y + y + z + z + xy - xz - yz

= 2z + xy - xz - yz

∴ The correct option is (A).