Question

簡化x^2-8xy+16y^2

Answer 1

Factorization

Answer 2

so it is\[x ^{2}-8xy+16y ^{2}\]

Answer 3

it is of the form a^2-2ab+b^2=(a-b)^2

Answer 4

ok carry on @uri

Answer 5

ok @uri

Answer 6

Lol im busy learning something.

Answer 7

\[x ^{2}-4xy-4xy+16y ^{2}\]

Answer 8

did u get it @kakikkkk

Answer 9

only have Answer?

Answer 10

why do i feel "簡化" is a key statement here...

Answer 11

is Factorization

Answer 12

only have Answer?

Answer 13

\[x^{2}-8xy+16y^{2}=x^{2}-2.x.4y+(4y)^{2}\]

Answer 14

@kakikkkk NOW change the above expression in the form \[(a-b)^{2}\]

Answer 15

@kakikkkk
x^2 - 8xy + 16 y^2 =

(Look for two numbers that multiply to 16 and add to -8)

x^2 - 4 xy - 4 xy + 16 y^2 =

(factor by grouping)

x (x - 4y) -4y (x - 4y) =

[ (x - 4y) is the common factor ]

(x - 4 y) * ( ? - ?)