Question

solve this problem
(-5)^-3×(-5)^-4​

Answer 1

Answer:

$\sf{ \frac{-1}{ {5}^{7}}}$

Step-by-step explanation:

$\sf{( - 5)^{ - 3} \times {( - 5)}^{ - 4}}$

$\sf{by \: using \: {a}^{m} \times {a}^{n} = {a}^{m + n}} \: we \: can \: solve$

$\sf{{ = ( - 5)}^{ - 3 + - 4}}$

$\sf{ = ( - 5)^{ - 7}}$

$\sf{ = \frac{1}{ - 5^{7}}}$

=-1/5^7

$\bf \blue{ \underline{Please \: mark \: it \: as \: brainlst \: answer}}$