Question

(7x в квадрате-5x+3)-(7x в квадрате-5)=

Answer 1

7x²-5x+3-7x²+5= 8-5x

Answer 2

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