Question

from the sum of 4x²-3xy+7x and 5x²+7xy-5x subtract 4xy-7x².

solve​

Answer 1

Explanation:

Answer in the attachment

Answer 2

${ \rm{ \large{ \bold({4 {x}^{2} - 3xy + 7x) + (5 {x}^{2} + 7xy - 5x) - (4xy - 7 {x}^{2}) }}}}$

${ \rm{ = (9{x}^{2} + 4xy + 2x) - (4xy - 7 {x}^{2} ) }}$

${ \rm{ =9{x}^{2} + 4xy + 2x - 4xy - 7 {x}^{2} }}$

${ \rm{ =9{x}^{2} + 4xy + 2x - 7 {x}^{2} - 4xy }}$

${ \rm{ =2{x}^{2} - xy + 2x }}$