Question

can anyone please answer this please please please please​

Answer 1

$4ab-3ab+8ab+ab</p><p>=10ab$

$- 5 {x}^{2} y + 10 {x}^{2} y + 9 {x}^{2} y - 6 {x}^{2} y = 8 {x}^{2} y$

$2x + 5 + 7x + 11 = 9x + 16$

Answer 2

Step-by-step explanation:

Add/ Substract:

1) 4ab, -3ab,8ab,ab

add= 4ab+ -3ab+8ab+ab= 10ab

Substract= 4ab-(-3ab)-8ab-ab= ab

2) -5x^2y,10x^2y,9x^2y,-6x^2y

add= -5x^2y+10x^2y+9x^2y+(-6x^2y)= 8x^2y

substract= -5x^2y-10x^2y-9x^2y-(-6x^2y)

=18x^2y

3)2x+5 and 7x+11

add= 2x+5 + 7x+11= 9x+16

substract= 2x+5-(7x+11)=2x+5-7x-11= -5x-6

4) 2a+b-c,2a-b+2c,-3a+b-c

add= 2a+b-c+2a-b+2c+-3a+b-c= a+b

substract= 2a+b-c-(2a-b+2c)-(-3a+b-c)

= 2a+b-c-2a+b-2c+3a-b+c

= 3a+b-2c

5)3x+11,7x-5

add= 3x+11+7x-5= 10x+6

substract= 3x+11-(7x-5)=3x+11-7x+5=-4x+16