Question

Mathematics
Pls fast​

Answer 1

Answer:

$i)\: \: \:\:\: \: \: \: 2a+8a+3a\\:\implies 13a\\\\ii) \: \: \: \: \: -4x^{2} -7x^{2} \\:\implies -11x^{2} \\\\iii) \: \: \: \: \:-10xy+7xy\\:\implies -3xy$

Hope it helps you !!

Pls mark me brainlist !!

Answer 2

Answer:

a.13a

b. -11x2

c.-3xy

Step-by-step explanation:

2a+8a+3a=13a