Объяснение:
2х²-12х+10=2(x-5)(x-1)
-2x²+5x+7=(x+1)(7-2x)
5x²-8x+3=(x-1)(5x-3)
9x²+6x+1=(3x+1)²
2x²-6x+5=
-2x²+5x-3=(x-1)(3-2x)
4x²-7x+3=(x-1)(4x-3)
