Question

Descompuneti in factori următoarele expresii, utilizând formula:
${a}^{2} - 2ab + {b}^{2} = (a -b) ^{2}$
a)
${x}^{2} - 4xy + 4 {y}^{2}$
b)
${x}^{2} - 6x + 9$
c)
${x}^{2} - 12x + 36$
d)
$25 {a}^{2} - 20a + 4$
e)
$49 {x }^{2} - 28xy + 4 {y}^{2}$
f)
${x}^{2} {y}^{2} - 4xy + 4$
g)
${a}^{2} - 18ac + 81 {c}^{2}$
h)
$64 - 144x + 81 {x}^{2}$
DAU COROANA!!!!!

Answer 1

a)(x-2)^2

b)(x-3)^2

c)(x-6)^2

d)(5a-2)^2

e)(7x-2)^2

f)(xy-2)^2

g)(a-9c)^2

h)(8-9x)^2