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lutik1710 [3]
3 years ago
14

Please help, What (x+y)(x-y)

Mathematics
2 answers:
ollegr [7]3 years ago
8 0

Answer:

x^{2}-y^{2}

Step-by-step explanation:

(x+y)(x-y)

Use Foil

x(x-y)=x^{2}-xy

y(x-y)=xy-y^{2}

Combine

x^{2}-xy+xy-y^{2}

-xy and xy cancel each other out so our final answer is

x^{2}-y^{2}

JulijaS [17]3 years ago
5 0

Answer:

x^2-y^2

Step-by-step explanation:

positive x * positive x = x^2

positive y * negative y = -y^2

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