Question

add x^2-y^2, y^2-z^2 and z^2-y^2​

Answer 1

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Step-by-step explanation:

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Answer 2

Answer:

(x+y)(x-y)

Step-by-step explanation:

x^2-y^2+y^2-z^2+z^2-y^2

=x^2-y^2

=(x+y)(x-y)