Question

ã - bx + ab - x mũ 2

mn nào cứu mik với , mik làm nhiều quá nên lú luôn rồi

Answer 1

ax - bx + ab - x²

= ( ax + ab ) - ( x² + bx )

= a ( x + b ) - x ( x + b )

= ( a - x ) ( x + b )

Answer 2

ax - bx + ab - x²

= ( ax + ab ) - ( x² + bx )

= a( x + b ) - x( x + b )

= ( x + b )( a - x )

Answer 3

\(ax-bx+ab-x^2\)

\(=\left(ax+ab\right)-\left(bx-x^2\right)\)

\(=\left[a\left(x+b\right)-x\left(b+x\right)\right]\)

\(=\left(a-x\right)\left(x+b\right)\)