Решите плез оч надо по формуле а²-b²

Question

Решите плез оч надо
по формуле а²-b²

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Answer 1

(6-5bc)(6+5bc)
(7y^2-x^2)(7y^2+x^2)
(a^3b^2-c^4)(a^3b^2+c^4)

Comments

(0,2m^2-11n^2k^5)(0,2m^2+11n^2k^5)

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(9-10ab^2c^3)(9-10ab^2c^3)

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(3/7y^4-2/5x^6)(3/7y^4+2/25x^6)

Answer 2

1.(6-5bc)(6+5bc)
2.-(x2-7y2)(x2+y2)
3.(a3b2-c4)(a3b2+c4)
4.(8-9pc2)(8+9pc2)
5.(0.2m-11n2k5)(0.2m+11n2k5)
6.(9-10ab2c3)(9+10ab2c3)
7.-(2/5x6-3/7y4)(2/5x6+3/7y4)