halliehemnes halliehemnes

16-09-2020
Mathematics

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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)

Respuesta :

paulineyujie paulineyujie

18-09-2020

Answer:

B

Step-by-step explanation:

factor the expression.

recheck: -5×4= -20

-5+4= 1 (which is a)

a×a=a²

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