Question

testul 2.... exercitiul 2

Answer 1

(25-3²)⁴ : 4⁶ = 

= (25 - 9)⁴ : 4⁶

= 16⁴ : 4⁶

= 4²⁾⁴ : 4⁶

= 4⁸ : 4⁶

= 4²

Answer 2

$(25 - {3}^{2} )^{4} \div {4}^{6} = \\ \\ \\ (25 - 9)^{4} \div {4}^{6} = \\ \\ {16}^{4} \div {4}^{6} = \\ \\ ({4}^{2} )^{4} \div {4}^{6} = \\ \\ {4}^{8} \div {4}^{6} = {4}^{8 - 6} = {4}^{2} = 16$