Question

Solve and verify, x(x + 1) - x(x + 2) + 3x = 6.​

Answer 1

Answer:

2x+x-2x+2x+3x=6

Step-by-step explanation:

solve it

Answer 2

Step-by-step explanation:

x(x+ 1) - x( x+2)+3x = 6

x²+x - x²-2x +3x = 6

x²-x²+1x -2x +3x = 6

0+4x- 2x = 6

2x = 6

x = 6/2

x = 3

check

3 (3+1)-3(3+2)+3×3 = 6

3×4 - 3×5+9 = 6

12- 15 + 9 = 6

12+9-15 = 6

21- 15 = 6

6 =6 verified