halliehemnes halliehemnes
  • 16-09-2020
  • Mathematics
contestada

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 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

Answer Link

Otras preguntas

Please help thank you
Help will mark it brainless
Evaluate the expression, 23.98-1.49x7.6
t's find profit or loss percents. C. P. = Rs 200, S. P. = Rs 220​
what if a boy says a girl you are under my knee what is meaning of that ? phrases meaning part b​
Show that entropy change due to heat transfer by conduction is given by ∆S=mC (4 marks) ln 2 T T 2
help me pleaseee!!! thank you
cmnbcnvvm,mbvnbhcvjb,mn gjv
Give reason for the following (9*1=9 marks) a)It is difficult to hold a school bag having a strap made of a thin and strong string. b)An iron nail sinks in wat
Write a python program to check whether the number is divisible by 7. If its divisible, print its divisible otherwise find previous number and the next number w