Simplify 2x 2 3x 2 4x

- Simplify 2x 2 3x 7 3x 2 4x 7
- Simplify 2x 3x 2 4x 5
- Simplify x 2 2x 5 )-( 3x 2 4x 7
- Simplify 2x 2 4x 7x 3x 2 5
- Simplify 2x 2 3x 7 )-( 4x 2x 2 9
- Simplify 5x 2 7 2x 3x 2 4x 1
- Multiply and simplify 2x^2 - 3x + 9)(-4x^2 + 5x - 7)
- Simplify 4x 2 3x 2 )-( 2x 2 5x 7
- Simplify 3x 2 5x 3 x 2x 2 4x
- Simplify 4x 2 3x )+( 8x 2x 2 5
- Simplify 3 2x 2x 2 )-( 4x 5 3x 2