How do you simplify $(-2y)(y^3)$ ?

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Answer 1 · 2015-07-30T17:19:30

$=color(blue)(−2y^4$

$(−2y)(y^3)$

$=(−2) * (y^1) * (y^3)$

$color(blue)(a^m*a^n=a^(m+n)$
Applying the above property to the exponents of $y$

$=(−2) * (y^1) * (y^3)$

$=(−2) * (y^(1+3))$

$=color(blue)(−2y^4$

How do you simplify (-2y)(y^3)(-2y)(y^3)?