Expand and simplify 7x-(x-4)(-x-3)

Answer 1

Hello, Milica.

7x - (x - 4)(-x - 3)

= 7x - (-x² + 4x -3x + 12)......don't forget that negative sign in front of the x²

=7x - (-x² + x + 12)

= 7x + x² -x -12

= x² + 6x - 12

Answer 2

7x-(x-4)(-x-3)

= 7x -(x² +4x -3x +12)

=7x-(x² + x +12)

= 7x -x² -x -12

=-x² + 6x -12

=x² -6x + 12 ............multipllied whole equation with -1