LALAcarcaru LALAcarcaru

21-04-2016
Mathematics

contestada

please help me with this, i just need this question and i'll be able to graduate

please help me with this i just need this question and ill be able to graduate class=

Respuesta :

apologiabiology apologiabiology

21-04-2016

easey, just multiply everybody and add the exponents for like terms remember
(a^m)(a^n)=a^(m+n)
also
(ab)c=a(bc)
so

-4x³y²(7xy⁴)=
-4*x³*y²*7*x*y⁴=
-4*7*x³*x*y⁴*y²=
-28*x⁴*y⁶
-28x⁴y⁶

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