Question
(? × 3)2 - 85 = 115 × 5 +
69 What will come in the place of question mark (?) in the given expression?Solution
ATQ, (? X 3)2 - 85 = 115 X 5 + 69 (? X 3)2 = 85 + 575 + 69 (? X 3)2 = 729 ? X 3 = ±27 ? = 27 ÷ 3 = ±9
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