How do you evaluate $5 k^{- 2} \cdot - 3 k^{3}$ $5k ^ { - 2} \cdot - 3k ^ { 3}$ ?

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How do you evaluate $5 k^{- 2} \cdot - 3 k^{3}$ $5k ^ { - 2} \cdot - 3k ^ { 3}$ ?

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Answer 1 · 2018-03-14T08:42:01

$= - 15 k$ $=-15k$

Explanation:

Since they are like terms, simple multiplication is required:
$= 5 k^{- 2} \cdot - 3 k^{3}$ $=5k^-2*-3k^3$
Integers get added when multiplied
$= - 15 k$ $=-15k$

Answer 2 · 2018-03-14T08:42:40

$- 15 k$ $-15k$

Explanation:

$using the law of exponents$ $"using the "color(blue)"law of exponents"$

$∙ x a^{m} \times a^{n} = a^{(m + n)}$ $•color(white)(x)a^mxxa^n=a^((m+n))$

$\Rightarrow 5 k^{- 2} \times - 3 k^{3}$ $rArr5k^-2xx-3k^3$

$= (5 \times - 3) \times k^{(- 2 + 3)}$ $=(5xx-3)xxk^((-2+3))$

$= - 15 k$ $=-15k$

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How do you evaluate $5 k^{- 2} \cdot - 3 k^{3}$ $5k ^ { - 2} \cdot - 3k ^ { 3}$ ?

2 Answers

Explanation:

Explanation:

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