(x-5)(4x+1)
4x^2 times -5 is -20 the factors of -20 are -1x20, 1x-20... but to make the -19x you would add together the 1 and -20 because 1-20 is -19.
This then splits off to factorise 4x^2-20x, making this side 4x(1x-5) carry the brackets over to make it 1(1x-5) joining the brackets together to make (4x+1)(x-5)
Answer:
a
Step-by-step explanation:
<span>If there are 60 seconds in a minute and 60
minutes in an hour, while you're traveling 60 miles an hour, that should
reduce to 6 miles every 6 minutes. That's equivalent to 1 minute per mile. so if you're travelling 60 miles for 60 minutes, it means that it takes 1 minute to travel 1 mile. so the answer is 60 min
</span>