Question

Add.
8. 2p+q , -p-5q and 3p+7q
9. 8x2+5xy-3y2

, -5x2+3yx+5y2 and -3x2 +2xy +4y2

Q Subtract
10. 3x+5y-2z from 8x+11y+5z
Q 11 Make the tree diagram
2x2-3x +2

Answer 1

Answer:

8. 4p+11q

9.3x²+6x²+10xy

10. 5x+16y+3z

11. Please refer to the attachment

Step-by-step explanation:

8.

$2p + q + ( - p - 5q) + 3p + 7q$

$2p + q - p + 5q + 3p + 7q$

$2p + 3p +5q +7q + q - p$

$5p - p+ 12q - q$

$4p + 11q$

9.

$8 {x}^{2} + 5xy - {3y}^{2} + ( - 5 { x}^{2}) + 3yx + 5 {y}^{2} + ( - 3 {x}^{2} ) + 2xy + 4 {y}^{2}$

$8 {x}^{2} + 5xy - 3 {y}^{2} - 5 {x}^{2} + 3yx + 5 {y}^{2} - 3 {x}^{2} + 2 xy + 4 {y}^{2}$

$8 {x}^{2} - 5 {x}^{2} - 3 {y}^{2} + 5 {y}^{2} + 4 {y}^{2} + 5xy + 3yx + 2xy$

no

$3 {x}^{2} + 2 {y}^{2} + 4 {y}^{2} + 8xy + 2xy$

$3 {x}^{2} + 6 {y}^{2} + 10xy$

10.

$8x + 11y + 5z - 3x + 5y - 2z$

$8x - 3x + 11y + 5y + 5z - 2z$

$5x + 16y + 3z$

11. Please Refer to the attachment