Answer:
yes
Step-by-step explanation:
42
Factors of 42:1,2,3,6,7,21,42
Factors of 84: 1,2,3,6,7,12,14,21,28,42,84
Both have 42 so it is the gcf.
Brainliest?
Answer and Step-by-step explanation:
Let's try to add these two mixed numbers together. We have and .
First, add the nonfractional parts together:
1 + 2 = 3
Now add the fractional parts. Because 3/10 and 5/10 already have a common denominator (10), we can simply add the numerators together:
Add 8/10 to our whole number 3:
3 + 8/10 =
Clearly, ≠ 5, which is why 1 3/10 + 2 5/10 ≠ 5.
Hope this helps!
It's useful to divide out the GCF first because it makes factoring easier as the coefficients are smaller requiring less steps.
Example where you don't factor GCF first...
4*-32 = -128
numerous factor pairs for 128 ... takes time to find the correct one
right factor pair is 16,-8
substitute for 8x
4x² + 16x - 8x - 32 = 0
group then factor
4x(x+4) - 8(x+4) = 0
group again
(4x-8)(x+4) = 0
Example of factoring GCF first
4x² + 8x - 32 = 0
4 is GCF
x² + 2x - 8 = 0
factor
(x+4)(x-2) = 0
Solving for x gives the same answer just less steps and simpler math when you factor GCF first.
Answer:
8
Step-by-step explanation: