Question

6. Which one is greater
(-2) X (5) X (-7) or (-1) X (-5) x 8​

Answer 1

Answer:

-2 × 5 × -7 = 70

-1 × -5 ×8 = 40

-2 × 5 × -7 is bigger

Answer 2

$i ) (-2) \times 5 \times (-7) \\= [(-2) \times 5] \times (-7)\\= (-10) \times (-7) \\= 10 \times 7 \\= 70 \: --(1)$

$ii) (-1) \times (-5) \times 8 \\=[ (-1) \times (-5)] \times 8 \\= 5 \times 8 \\ = 40 \: --(2)$

/* From (1) and (2), we conclude that */

$70 \red{ > } 40$

Therefore.,

$(-2) \times 5 \times (-7) \green {> } \: (-1) \times (-5) \times 8$

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