Question

Упростите выражение (2x-3)^2-4x^2-5

Answer 1

4x²-12x+9-4x²-5=4-12x=4(1-3x)

Answer 2

(2x-3)^2-4x^2-5=4x²-12x+9-4x²-5=4-12x=4(1-3x)