e1mileyrmaisZaniaco
e1mileyrmaisZaniaco
04-06-2016
Mathematics
contestada
Multiply: (9x^2y^3)(7xy^2)
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meerkat18
meerkat18
04-06-2016
(9x²y³)(7xy²)
9 * 7 = 63
x² * x = x^2+1 = x³
y³ * y² = y^3+2 = y^5
(9x²y³)(7xy²) = 63x
³y^5
Answer Link
apologiabiology
apologiabiology
05-06-2016
remember
(ab)(cd)=(a)(b)(c)(d)=(ac)(bd),
and
(x^m)(x^n)=x^(m+n)
(9x^2y^3)(7xy^2)=
(9)(x^2)(y^3)(7)(x)(y^2)=
(9)(7)(x^2)(x)(y^3)(y^2)=
(63)(x^3)(y^5)=
63x^3y^5
Answer Link
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