Question

$find \: the \: real \: roots \: in \: this \: equation \: | {x}^{2} | - 3 |x| + 2 = 0$
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Answer 1

${x}^{2} - 3x + 2 \: = 0 \\ {x}^{2} - x - 2x + 2 = 0 \\ x( x- 1) - 2(x - 1) = 0 \\ (x - 2)(x - 1) = 0 \\ x = 2 \: \: or \: \: x = 1$

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Answer 2

Answer:

x 2 −3x+2

=0x 2 −x−2x+2

=0x(x−1)−2(x−1)

=0(x−2)(x−1)

=0 x=2 or x=1