Question

Multiply 7ab²,-4a²b,-5abc

Answer 1

7ab², -4a²b and -5abc

Solution: 

(7ab²) × (-4a²b) × (-5abc) 

= {7 × (-4) × (-5)} × {ab² × a²b × abc}

= 140 a1+2+11+2+1 b2+1+12+1+1 c

= 140a⁴b⁴c. 
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Answer 2

Answer:

7ab², -4a²b and -5abc.

Solution: (7ab²) × (-4a²b) × (-5abc)

= {7 × (-4) × (-5)} × {ab² × a²b × abc}

= 140 a1+2+11+2+1 b2+1+12+1+1c2

= 140 a⁴b⁴c⁴

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