A. Matching Type. Add the following polynomials in column A and find its sum in column B. Write the letter of the correct answer on the blank before each number

1. (6a - 20 ) + (20a - 6)
2.(20a² + 9a - 8 ) + ( -5a² 10a + 4)
3.(a² - 5a³ +a⁴) + (5a⁴ - 6a³ + 5)
4.(a²b + 5ab²) + (22ab² - 7a²b)
5.(6a³ - 9a² + 4) + (7a³ - 8a² - 6a)

A.-6a² b + 27ab²
B.20a³ + 17a² — 9a — 3
C.9a² + 14a + 5
D.26a — 26
E.10a² + 18a + 15
G.15a² — a — 4
H.6a⁴ — 11a³ +a² + 5​