Question

Помогите плиз алгебра 7 классс

Answer 1

$\displaystyle 16m^2-24mn+9n^2+6m-4.5n=((4m)^2-2*4m*3n+(3n)^2)+6m-4.5n=\\\\=(4m-3n)^2+6m-4.5n=(4m-3n)^2+1.5(4m-3n)=(4m-3n)(4m-3n+1.5)\\\\ a=4, b=3, c=1.5$