Answer:
The Greast Common Factor of 18 and 72 is 18
Step-by-step explanation:
Factors of 18: 1, 2, 3, 6, 9, 18
Factors of 72: 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72
GCF of 18 and 72 is 18
<u>To find the GCF of two or more numbers</u>
we need two steps
Step 1: List the prime factors of each number.
Step 2: Multiply those factors all numbers have in common. If there are no common prime factors, the GCF is 1.
<u>To find the GCF of 18 and 72</u>
18 = 2 * 3* 3
72 = 2 * 2 * 2 * 3 * 3
Common prime factors 2, 3, 3
Therefore GCF = 2* 3 * 3 = 18
x=-1 and x=1
all you have to do is replace the letters with numbers and
The depth function is:
After 3 minutes, a submarine had descended to −320 feet.
This means that . So
After 8 minutes, the submarine had descended to −420 feet.
From the first equation:
So
And
2(x+6)(x+6)
splitting the middle term:
2x²+12x+12x+72
then2x(x+6)+12(x+6)
=(2x+12)(x+6)
=2(x+6)(x+6)(by takin common factor out)
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