Question

алгебра 7 клас!!!!!!!!!!!!​

Answer 1

Ответ:

$(5x-m)(5x+m)=25x^2-m^2\\\\x^2-9y^2=(x-3y)(x+3y)\\\\(3n+2p)^2=9n^2+12np+4p^2\\\\64-8a^3=(4-2a)(16+8a+4a^2)=8\, (2-a)(2a^2+4a+8)\\\\(2-3k)(4+6k+9k^2)=2^3-(3k)^3=8-27k^3$

Answer 2

Ответ:

$25x {}^{2} - m {}^{2}$

$(x - 3y)(x + 3y)$

$9n {}^{2} + 12np + 4p {}^{2}$

$8(2 - a)(4 + 2a + a {}^{2} )$

$8 - 27k {}^{3}$