Решите уравнения

1. (2x+3) * (4-x) = 0

2. (5x-8) * (3x+10) = 0

3. (4x+14) * (7-2x) = 0

1. (2x+3) * (4-x) = 0

2 х+3=0 или 4-х=0

2 х=-3 - х=-4

х=-1,5 х=4

2. (5x-8) * (3x+10) = 0

5 х-8=0 или 3 х+10=0

5 х=8 3 х=-10

х=1,6 х=-10/3

3. (4x+14) * (7-2x) = 0

4 х+14=0 или 7-2 х=0

4 х=-14 - 2 х=-7

х=-3,5 х=3,5