blueshark1208
blueshark1208
03-04-2018
Mathematics
contestada
One Algebra question. Thank you :D
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choixongdong
choixongdong
03-04-2018
a^2 - b^2 ...difference of squares
so
9m^4 - 49n^6 = (3n^2)^2 - (7n^3)^2
answer
C. 9m^4 - 49n^6
Answer Link
krispa
krispa
03-04-2018
The answer would be C because the coefficients are both perfect squares and when you subtract the exponents (6 - 4), it turns up to be an even number. (difference of exponents have to be an even number or zero)
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