Oblicz : 67-7 [ 2x(31-17) - (8x9-x8x8) ] : 10 - 43
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67-7 [ 62 - 34 - (72 - 64)] : 10 - 43 = 67 - 7 [ 28 - 8 ] : 10 - 43 = 67 - 7 * 20 : 10 - 43 =
67 - 140 : 10 - 43 = 67 - 14 - 43 = 67 - 57 = 10
Jeżeli X to niewiadoma to takie rozwiązanie:
67-7 [ 2x(31-17) - (8x9-x8x8) ] : 10 - 43 = 67 - 7 [ 62x - 34x - ( 72x - 64x^2 )] : 10 - 43 = 67 - 7 [ 62x - 34x - 72x + 64x^2 ] :10 - 43 = 67 - 7 ( - 44x + 64x^2) : 10 - 43 =
67 + 308x - 448x^2 : 10 - 43 = 67 + 308x - 44,8x^2 - 43 = 44,8x^2 + 308x + 24