ଦୁଇଟି ଋଣାତ୍ମକ ସଂଖ୍ୟା ର ଗୁଣଫଳ ଏକ ଧନାତ୍ମକ ସଂଖ୍ୟା କାହିଁକି ହୁଏ ? Why -ve × -ve = +ve ? 

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In math, multiplying or dividing two negative numbers results in a positive number because the negative signs cancel each other out. A negative sign in math is an instruction to change the direction of a number on a number line. When multiplying or dividing two negative numbers, the direction is reversed twice, which results in a positive number.