(2m-3a)= (2m-3a)(2m-3a= 2m2m + 2m(-3a) - 3a2m - 3a(-3a= 4m² - 6ma - 6ma + 9a= 4m² - 12ma + 9a²
(x-4y)= x-4y
(3p-4y)= (3p-4y)(3p-4y)(3p-4y= (3p-4y)(9p² - 12py - 12py + 16y²= 27p³ - 36p²y - 36p²y + 48py² - 36p²y + 48py² + 48py² - 64y= 27p³ - 108p²y + 144py² - 64y³
(2m-3a)
= (2m-3a)(2m-3a
= 2m2m + 2m(-3a) - 3a2m - 3a(-3a
= 4m² - 6ma - 6ma + 9a
= 4m² - 12ma + 9a²
(x-4y)
= x-4y
(3p-4y)
= (3p-4y)(3p-4y)(3p-4y
= (3p-4y)(9p² - 12py - 12py + 16y²
= 27p³ - 36p²y - 36p²y + 48py² - 36p²y + 48py² + 48py² - 64y
= 27p³ - 108p²y + 144py² - 64y³