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(x + 5)4 = (x + 3)2 4x + 20 = 2x + 6 2x = + 6 - 20 2x = - 14 X = - 7 (Y).

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Natfr1107
8

(x + 5)4 = (x + 3)2

4x + 20 = 2x + 6

2x = + 6 - 20

2x = - 14

X = - 7

(Y).