Question

разложить на множител: a^2-16+b^2-2ab

Answer 1

= ( а^2 + b^2 - 2ab ) - 16 = ( a - b )^2 - 4^2 = ( a - b + 4 )( a - b - 4 )

Answer 2

а^2 - 16 + b^2 - 2ab = a^2 - 2ab + b^2 - 16 = (a - b)^2 - 16 = (a - b - 4)(a - b + 4)