Question

PTĐTTNT:4x^2-25

Answer 1

\(4x^2-25=4x^2-5^2=\left(4x-5\right)\left(4x+5\right)\)

Answer 2

\(4x^2-25=\left(2x\right)^2-5^2=\left(2x-5\right)\left(2x+5\right)\)

Answer 3

mk nhầm chút, \(4x^2-25=\left(2x\right)^2-5^2=\left(2x-5\right)\left(2x+5\right)\) nhé,bn Nguyễn Thu Giang làm đúng r nhé

Answer 4

\(4x^2-25\)

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

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