Question

$if \: (81) \ { \frac{5}{n} } = 243 \: find \: n$
$\: \: \: simplify \: \\ \\ 3 \sqrt{x {}^{2} + 2 = 3 }$
➡Please I need a help!
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Answer 1

Answer:

ok l will solve this l will need time

Answer 2

Algebra helps in the representation of problems or situations as mathematical expressions. It involves variables like x, y, z, and mathematical operations like addition, subtraction, multiplication, and division to form a meaningful mathematical expression. ... One simple example of an expression in algebra is 2x + 4 = 8.