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= 576 - 289 + 49
= 576 - 240
= 336
24) ((-2)² +4)² : ³√-8
= (4+4)² : (-2)
= 8²/-2
= 64/-2
= -32
25) selisih = 52²-47² = (52+47) x (52-47)
= 99 x 5
= 495 cm²