Question

please give me ans fast​

Answer 1

Answer:

which class

Step-by-step explanation:

which school

which syllabus

Answer 2

$1.(7x - 4y) + (2x + 6y)$

$= > (7x + 2x) + (6y - 4y)$

$= > 9x + 2y$

$2.(9 {x}^{2} + 5x) + (6 {x}^{2} - 2x)$

$= > 15 {x}^{2} + 3x$

$3.(6 {a}^{2} {b}^{2} - 4a) + ( - 7 {a}^{2} {b}^{2} - 2a)$

$= > - {a}^{2} {b}^{2} - 6a$

$4.(11ab - 7 {a}^{2} ) + ( - 16ab + 11 {a}^{2} )$

$= > 4 {a}^{2} - 5ab$

$5.(18xy - 7) + ( - 11xy + 11)$

$= > 7xy + 4$

$6.(2a + b) + (6 {a}^{2} - 7a - b)$

$= > 6 {a}^{2} - 5a$

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