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Anyone in 10th grade please help me because I have to pass this later at 10 pm:(

Directions:Use the product rule to simplify the following monomials.

18.) 19m⁸n⁸ - (4m⁵n)(3m³n⁷)
19.) (-5cd)(-3c⁴d) - (7c²d²)(2c³)​

User Romain Hautefeuille
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1 Answer

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18)
19m^8n^8-\left(4m^5n\right)\left(3m^3n^7\right)


=19m^8n^8-4m^5n\cdot \:3m^3n^7


=19m^8n^8-12m^8n^8


=7m^8n^8

19)
\left(-5cd\right)\left(-3c^4d\right)-\left(7c^2d^2\right)\left(2c^3\right)


=5cd\cdot \:3c^4d-7c^2d^2\cdot \:2c^3


=15c^5d^2-14c^5d^2


=c^5d^2

User Seekheart
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