Question

Solve this frnds ❤
Find x so that
$( - 7) {}^{x + 2} \times ( - 7) {}^{5} = ( - 7) {}^{10}$
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Answer 1

Step-by-step explanation:

$\sf(- 7) {}^{x + 2} \times ( - 7) {}^{5} = ( - 7) {}^{10}$

$\sf \: we \: know \: that$

$\sf \: {a}^{m} × {a}^{n} = {a}^{m + n}$

$\sf \: suppose \: (x + 2) = m \: and \: 5 = n$

$\therefore \sf x + 2 + 5 = 10$

$\sf \longrightarrow \: x + 7 = 10$

$\sf \longrightarrow \: x = 10 - 7$

$\sf \longrightarrow \: x = 3$

$\sf\red{Hope\: it's\: helpful}$

Answer 2

Answer:

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