1) (m+n)(m-n)2)(x+5)(x-5)3)(a-3)(3+a)4)(y+2)(2-y)

Question

1) (m+n)(m-n)
2)(x+5)(x-5)
3)(a-3)(3+a)
4)(y+2)(2-y)

Answer 1

М2-n2;x2-25;a2-9;y2-4.

Comments

lf

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да

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ниже

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так???