Respuesta:
1) x^2 - x = 0 -> Se divide cada parte entre "X" x - 1 = 0 --> x = 1
3) x^2 - 9 = 0 -> Se obtiene raíz y se invierte x^2 = 9 --> x = 3
5) x^2 - 2x = 0 -> x^2 = 2x -> x = 2
7) 3x^2 - 4 = 28 + x^2 -> 3x^2 - x^2 = 28 + 4
2x^2 = 32 -> x^2 = 16 -> x = 4
2) 2x^2 = 0 -> x = 0
4) 4x^2 - 9 --> 4x^2 = 9 -> x^2 = 9/4 -> x = 3/2
6) 8x^2 + 16x = 0 -> 8x^2 = -16x -> x^2 = -2x -> x = -2
8) x^2 - 9x = 0 -> x^2 = 9x -> x = 9
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Respuesta:
1) x^2 - x = 0 -> Se divide cada parte entre "X" x - 1 = 0 --> x = 1
3) x^2 - 9 = 0 -> Se obtiene raíz y se invierte x^2 = 9 --> x = 3
5) x^2 - 2x = 0 -> x^2 = 2x -> x = 2
7) 3x^2 - 4 = 28 + x^2 -> 3x^2 - x^2 = 28 + 4
2x^2 = 32 -> x^2 = 16 -> x = 4
2) 2x^2 = 0 -> x = 0
4) 4x^2 - 9 --> 4x^2 = 9 -> x^2 = 9/4 -> x = 3/2
6) 8x^2 + 16x = 0 -> 8x^2 = -16x -> x^2 = -2x -> x = -2
8) x^2 - 9x = 0 -> x^2 = 9x -> x = 9
se más específico pop
por favor