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50. Problem
Solution ![]() 51. Problem
Solution ![]() 52. Problem
(a+2)(b+2)(c+2) = -2 (a+3)(b+3)(c+3) = -1 Solution ![]() so: ![]() which makes equations: ![]() 53. Problem Calculate x if![]() Solution factorize base numbers and combine:![]() division by 33x ![]() let ![]() so: ![]() Factorization of this equation may be found by plotting. See equation plotter Graphics Explorer 54. Problem
Solution ![]() 55. Problem
Solution ![]() 56. Problem
Solution ![]() 57. Problem 0 < b < aa2 + b2 = 6ab
Solution ![]() 58. Problem calculate x+y if given: ![]() Solution We use the rule: (x-1)(x+1) = x2 - 1.![]() 59. Problem
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