Question

plz tell fast i will mark​

Answer 1

Answer:

(a)2a+5b+7b+4c

2a+12b+4c

photo me second part h

Answer 2

Answer:

A) 2a + 5b and 7b + 4c

= 2a + 5b + 7b + 4c

= 2a + 12b + 4c

B) 2a^2, - 3b^2, 8b^2, - 7a^2

= 2a^2 - 3b^2 + 8b^2 - 7a^2

= - 5a^2 + 5b^2

Hope this is helpful for you.