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4. Why product (- 9) * (-5) X (-6) is negative while(- 9) * (-5) (- 6) X(-1) is positive? Give reason.5. Find the sign of product if we multiply together(a) 8 positive and 5 negative integers.(b) 5 positive and 6 negative integers.(c) 7 negative and 4 positive numbers.6. Which one is greater1) or (4) × (-2X (-1) |
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Answer» Answer: See it's very SIMPLE when we multiply (-) with (-) we get a positive answer example- (-5)*(-6) = +30 and when we multiply (-) with (+) we get a negative answer ex- (-5)*(6) = -30 now as PER your question (-9)* (-5) * (-6) = (- 9 * - 5) * (-6) = +45 * (-6) = -270 and (-9)* (-5) (-6) * (-1) = (-9) * (-11) * (-1) = (-9) * ( -11 * -1) = (-9) * (11) = -99 see the answer is still negative because you have not put multiplication sign in your question between -5 and -6 could be by mistake . But if you TRY by applying multiplication sign we get a positive answer. |
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