It is: 10x^2 -4x = 2x(5x-2)
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2x2x2x2 = 16
I got this answer by the calculations below:
2x2 = 4
4x2 = 8
8x2 = 16
2x2x2x2=16
it does,because 2x2x2x2= 16, and 4x4=16 so yeah duhhh
the answer is 2 because, you see which number to the power of 4 gives 16.. therefore 2x2x2x2= 16.
To calculate the GCF you first need to split the numbers into their prime factors: 16=2x2x2x2 32=2x2x2x2x2 The next step is to identify the common factors in each. Both numbers use four 2s, so we take these 4 2s and work out the product: 2x2x2x2=16 Thus, the GCF of 16 and 32 is 16.
lets take 2 for example, for a power of 2 (squared) you need to do 2x2=4 for powers of 3 (cubed) you must do 2x2x2=8 so for a power of 4 you must do 2x2x2x2=16. hope this helps :)