Question

(5^2-3^2):4-(1+2^0+3^0)

Answer 1

${5}^{2} - {3}^{2} \div 4 - (1 + {2}^{0} + {3}^{0} )$
25 - 9 ÷ 4 - 1 -1 - 1
25 -9 = 16 ÷ 4 = 4-1 = 3 - 1- 1 = 1