Question

please solve this

and write the correct answer​

Answer 1

......................

Answer 2

Step-by-step explanation:

$5x {}^{2} - 3x + 1 - (2x {}^{2} + 5x - 6) \\ = 5x {}^{2} - 3x + 1 - 2 x {}^{2} - 5x + 6 \\ = 5x {}^{2} - 2x {}^{2} - 3x - 5x + 1 + 6 \\ = 3x {}^{2} - 8x + 7$