Question

(x2 + 70x – 19) - (x2 - y + 7) + (3 - x2)​

Answer 1

Step-by-step explanation:

Here,

$( {x}^{2} + 70x - 19) - ( {x}^{2} - y + 7) + (3 - {x}^{2} )$

$= {x}^{2} + 70x - 19 - {x}^{2} + y - 7 + 3 - {x}^{2}$

$= 70x + y - 23 - {x}^{2}$

thanks a lot..

Answer 2

Answer:

kindly see the answer below..

Step-by-step explanation:

Here,

x²+70x-19-x²+y-7+3-x²

= -x²+70x+y-23

this is the answer..

thanks a lot.. plz ♥