Question

Evaluate : ( 52 )−2 × ( 52 )5 × ( 52 )0

Answer 1

$Using \: the \: identity \: (a+b) ^{2} = {a}^{2} + {b}^{2} + 2ab \\ We \: get, (52)^{2} = (50 + 2) ^{2} \\ = (50)^{2} + (2)^{2} + 2(50)(2) \\ 2500 + 4 + 200 \\ = 2704</p><p>$

Answer 2

Answer: 5/2

5^(2x+1)/25 = 625

5^(2x+1)/5²=5⁴

5^(2x+1-2)=5⁴

2x+1-2=4

2x-1=4

2x=5

x=5/2

Answer to the question in attachment is 5/2