Question

Simplify (7a^2 – 11a – 9) + (13a^2 + 21a – 3)
Answer

20a^2 + 10a – 6

20a^2 – 32a – 6

20a^2 + 10a – 12

20a^2 – 32a – 12 Simplify (7a^2 – 11a – 9) + (13a^2 + 21a – 3)
Answer

20a^2 + 10a – 6

20a^2 – 32a – 6

20a^2 + 10a – 12

20a^2 – 32a – 12 @Mathematics

Answer 1

c

Answer 2

Add like terms... a^2s with a^2s
a's with a's
numbers with numbers

Answer 3

C

Answer 4

7a^2 + 13a^2 = 20a^2
-11a + 21a = 10a
-9 - 3 = -12