Question

polinomio: a) (2x-4y)² b) (6x-8y)² c) (7x-4y)² d) (1x-7y)² e) (8x-2y)² f) (3x-5y)² g) (3x-8y)² h) (2x-7y)² i) (9x-8y) j) (7x-7y)² k) (6x-8y) L) (7x-6y)² m) (2x-7y)² n) (5x-8y) o) (8x-3y)² p) (3x-7y)² g) (8x-8y)² r) (3x-9y)² s) (2x-7y)² t) (9x-9y)² u) (3x-7y)² v) (6x-6y)² x) (8x-7y)² z) (7x-3y)² por favor

Answer 1

a) (2x - 4y)²  = (2x)² - 2.2x.4y + (4y)² = 4x² - 16xy + 16y²

b) (6x - 8y)² = (6x)² - 2.6x.8y + (8y)² = 36x² - 96xy + 64y²

c) (7x - 4y)² = (7x)² - 2.7x.4y + (4y)² = 49x² - 56xy + 16y²

d) (1x - 7y)² = x² - 2.x.7y + (7y)² = x² - 14xy + 49y² 

e) (8x - 2y)² = (8x)² - 2.8x.2y + (2y)² = 64x² - 32xy + 4y²

f) (3x - 5y)² = (3x)² - 2.3x.5y + (5y)² = 9x² - 30xy + 25y²

g) (3x - 8y)² = (3x)² - 2.3x.8y + (8y)² = 9x² - 48xy + 64y²

h) (2x - 7y)² = (2x)² - 2.2x.7y + (7y)² = 4x² - 28xy + 49y²

i) (9x - 8y)² = (9x)² - 2.9x.8y + (8y)² = 81x² - 144xy + 64y²

j) (7x - 7y)² = (7x)² - 2.7x.7y + (7y)² = 49x² - 98xy + 49y²

k) (6x - 8y)² = (6x)² - 2.6x.8y + (8y)² = 36x² - 96xy + 64y²

L) (7x - 6y)² = (7x)² - 2.7x.6y + (6y)² = 49x² - 84xy + 36y²

m) (2x - 7y)² = (2x)² - 2.2x.7y + (7y)² =  4x² - 28xy + 49y²

n) (5x - 8y)² = (5x)² - 2.5x.8y + (8y)² = 25x² - 80xy + 64y²

o) (8x - 3y)² = (8x)² - 2.8x.3y + (3y)² = 64x² - 48xy + 9y²

p) (3x - 7y)² = (3x)² - 2.3x.7y + (7y)² = 9x² - 42xy + 49y²

g) (8x - 8y)² = (8x)² - 2.8x.8y + (8y)² = 64x² - 128xy + 64y²

r) (3x - 9y)² = (3x)² - 2.3x.9y + (9y)² = 9x² - 54xy + 81y²

s) (2x - 7y)² = (2x)² - 2.2x.7y + (7y)² = 4x² - 28xy + 49y²

t) (9x - 9y)² = (9x)² - 2.9x.9y + (9y)² = 81x² - 162xy + 81y²

u) (3x - 7y)² = (3x)² - 2.3x.7y + (7y)² = 9x² - 42xy + 49y²

v) (6x - 6y)² = (6x)² - 2.6x.6y + (6y)² = 36x² - 72xy + 36y²

x) (8x - 7y)² = (8x)² - 2.8x.7y + (7y)² = 64x² - 112xy + 49y²  

z) (7x-3y)² = (7x)² - 2.7x.3y + (3y)² = 49x² - 42xy + 9y²