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Q: What is the LCM of 12x and 40y?

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120xy

120xy

120xy

lcm(12x, 40) = 120x

LCM(12x, 8y) = 24xy.

120x

Combine like terms, meaning add 12X plus 4X which is 16X and then you add 25Y plus 15Y which equals 40Y so the answer will be 16x+40y. combine like terms means add the ones with the same variable.

If you mean 12 and 4 then the LCM is 12

120

60xy

LCM(5x, 12x) = 60x

LCM(12x, 40y3) = 120xy3

LCM(10y2 , 8y) = 40y2

That will depend on the value of x

The GCF is 20.

The GCF is 20.

180

If you mean: (12x-3)(12x+3) then it is 144x^2 -9

Above 40y/o

12x-8y

Since x is a factor of both numbers, ignore it and find the LCM of 7 & 12. These two numbers do not share any factors, so their LCM is 7*12 = 84. Put the x back in for the final answer - 84x.

GCF = 12x.24x = 2(12x)36x3 = 3x2(12x)

Since the second one is a multiple of the first, it is automatically the LCM.

12x - 2x = 10

12x-17x = -5

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