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alli4476Best ResponseYou've already chosen the best response.0
what is the lcm of 14a^3b^7 and 21a^5b^2
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.0
what's the LCM of 14 and 21
 one year ago

JuanitaMBest ResponseYou've already chosen the best response.2
for the coefficent  LCM multiply the coefficient  what is the smallest number that both 14 and 21 divide evenly. So look at x^3 and x^5; Do you see that x^5 is the smallest monomial that both x^3 and x^5 divide evenly?  And looking at b^7 and b^2; Do you see that b^7 is the smallest?
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.0
now find the LCM of a^3 and a^5
 one year ago

alli4476Best ResponseYou've already chosen the best response.0
wait do I divide 3 and 5
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.0
you just take the larger exponent so the LCM is a^5
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.0
the LCM of b^2 and b^7 is b^7
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.0
all together: LCM of 14a^3b^7 and 21a^5b^2 is 42a^5b^7
 one year ago

alli4476Best ResponseYou've already chosen the best response.0
are you sure there is not that answer
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.0
what answer choices do you have
 one year ago

alli4476Best ResponseYou've already chosen the best response.0
here is what I have 7a^8b^9 249a^8b^9 249a^3b^2 7a^3b^2
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.0
looks like you want the GCF (and not the LCM) then
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.0
I see the GCF in there, but not the LCM
 one year ago

JuanitaMBest ResponseYou've already chosen the best response.2
your answer for the 7 is correct, but for GCF and exponents; you take the smaller of the exponents
 one year ago

alli4476Best ResponseYou've already chosen the best response.0
so it would be 7a^3b^2
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.0
you are correct
 one year ago
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