Question

(b+6a)(b-6a)
(7c+2k)(7c-2k)
(7+x)^2
y^2-20
(8g-2)^2
решите пж

Answer 1

1) b^2-36a
2) 7c^2-4k
3)49+14x+2x^2
4)64g^2-32g+4