1.

Expand 33 × 42 and 43 × 32 . Are they equal? Justify.

Answer»

33 × 42 = 3 × 3 × 3 × 4 × 4 

= 27 × 16 = 432 

43 × 32 = 4 × 4 × 4 × 3 × 3

= 64 × 9 = 576 

432 × 576 (They are not equal) 

Therefore, 576 > 432 

So, 43 × 32 > 33 × 42



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