Question

Please solve this..... ​

Answer 1

the given A=

${x}^{2} + xy- 6$

B =

$6xy - 2 {x}^{2} + 1$

and C =

$3 {x}^{2} + 7 - 3xy$

so find A + B + C

Question (¡)

${x}^{2} + xy - 6 + 6xy - 2 {x}^{2} + 1 + 3 {x }^{2} + 7 - 3xy \\ {x}^{2} + {x}^{2} + xy + 3xy - 5 + 7 \\ 2 {x}^{2} + 4xy + 2$

find A-B+C

Question (¡¡)

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

find A+B-C

QUESTION (¡¡¡)

${x}^{2} + xy - 6 + 6xy - 2 {x}^{2} + 1 - ( 3 {x}^{2} + 7 - 3xy) \\ - {x}^{2} - 5 + 7xy - 3 {x}^{2} - 7 + 3xy \\ - 4 {x}^{2} - 12 + 10xy$

answer