Question

PLEASE HELP ASAP TIMED

a2−a−20

A
(a+5)(a−4)
B
(a+4)(a−5)
C
(a+10)(a−2)
D
(a−20)(a+1)

Answer 1

B

Explanation:

factor the expression.

recheck: -5×4= -20

-5+4= 1 (which is a)

a×a=a²