Question

please answer fast guys please I give you brainlintes mark​

Answer 1

Answer:

$\frac{3}{4} {x}^{2} - \frac{5}{6} x + \frac{43}{6}$

Answer 2

Answer:

9x²/4 -1/2x +43/6

Step-by-step explanation:

( 3x² - 1/3x + 7/3 ) + (-1/4x²+1/3x-1/6 ) + (-2x²-1/2x+5 )

= 3x²-1/3x +7/3 -1/4x² +1/3x-1/6-2x²-1/2x+5

Now like terms

= 3x² -1/4x²-2x² -1/3x+1/3x -1/2x +7/3-1/6+5

= ( 12x²- x²- 2x²/4 ) ( here -1/3 and +1/3 will cancle ) ( 14 - 1 - 30/6 )

= 9x²/4 -1/2x +43/6