Hp dari 2|-2x-2|-3=13?

2|-2x-2|-3=13

☞ 2(-2x-2)-3 = 13
-2x-2-3 = 13
-2x = 13+2+3
-2x = 18
x = 9
☞ 2(-(-2x-2))-3 = 13
2(2x+4)-3 = 13
4x+8-3 = 13
4x = 13-8+3
4x = 8
X = 2

HP ☞ X = {2,9}

Persamaan Nilai Mutlak

2|-2x-2|-3 = 13
2|-2x-2| = 13 + 3
|-2x-2| = 16/2 = 8
-2x-2 = 8
-2x = 8 + 2
x = 10/-2
x = -5

2|-2x-2|-3 = -13
2|-2x-2| = -13 + 3
|-2x-2| = 10/2 = 5
-2x-2 = 5
-2x = 5 + 2
x = 7/-2
x = -3½

HP = {-5 , -3½}

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