Question

Phân tích đa thức thành nhân tử

4x² - 4xy + y² - 25

Answer 1

\(4x^2-4xy+y^2-25\)

\(=\left(2x-y\right)^2-5^2\)

\(=\left(2x-y-5\right)\left(2x-y+5\right)\)

Answer 2

\(4x^2-4xy+y^2-25=\left(4x^2-4xy+y^2\right)-5^2 \)
\(=\left(2x-y\right)^2-5^{2 } \)\(=\left(2x-y-5\right)\left(2x-y+5\right)\)

Answer 3

4x²-4xy+y²-25=(2x-y)²-5²=(2x-y+5)(2x-y-5)

Answer 4

4x\(^{^{ }2}\)-4xy+y\(^2\)-25=(2x-y-5)(2x-y+5)