Question

[phạm thị thục oanh]

| x - 3 | - 2 .(-4 ) = ( - 7 ) . ( - 12)

2 . | x + 2 | + 3 = 3³

nhờ ghi rõ vs ạ e đang cần gấp

Answer 1

[ミ★Ƙαї★彡]

a, \(\left|x-3\right|-2\left(-4\right)=\left(-7\right)\left(-12\right)\)

\(\Leftrightarrow\left|x-3\right|+8=84\Leftrightarrow\left|x-3\right|=76\Leftrightarrow x-3=\pm76\)

TH1 : \(x-3=76\Leftrightarrow x=79\)

TH2 : \(x-3=-76\Leftrightarrow x=-73\)

b, \(\left|x+2\right|+3=3^3=27\Leftrightarrow\left|x+2\right|=24\Leftrightarrow x+2=\pm24\)

TH1 : \(x+2=24\Leftrightarrow x=22\)

TH2 : \(x+2=-24\Leftrightarrow x=-26\)