Question

Simplify:- (5²-3²) (5upon4​

Answer 1

5²-3²*5/4

25-9*5/4

16*5/4

20

Answer 2

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$\longmapsto \sf \bigg( {5}^{2} - {3}^{2} \bigg) \bigg( \frac{5}{4} \bigg)$

$\longmapsto \sf \bigg( 25 - 9 \bigg) \bigg( \frac{5}{4} \bigg)$

$\longmapsto \sf 16 \times \frac{5}{4}$

$\longmapsto \sf 4 \times 5$

$\longmapsto \sf20$