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(x + 2)2−x2−60 = 0(x + 2)(x + 2)−x2−60 = 0xx + x⋅2 + 2x + 2⋅2−x2−60 = 0 x2 + 4x + 4−x2−60 = 0 4x−56 = 0 X = 56 / 4 X = 14.

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Dyahab1205
2

(x + 2)2−x2−60 = 0(x + 2)(x + 2)−x2−60 = 0xx + x⋅2 + 2x + 2⋅2−x2−60 = 0

x2 + 4x + 4−x2−60 = 0

4x−56 = 0

X = 56 / 4

X = 14.