Question

Plzz punctul b si c plzzz

Answer 1

b)
${4}^{12} \div {2}^{22} - {8}^{9} \div {2}^{26} = ( {2}^{2})^{12} \div {2}^{22} - ( {2}^{3} )^{9} \div {2}^{26} = {2}^{24} \div {2}^{22} - {2}^{27} \div {2}^{26} = {2}^{2} - 2 = 4 - 2 = 2$
c)(25^2×5^4)^3:5^22-2^2^2=(25^6×5^12):5^22-2^4=[(5^2)^6×5^12]÷5^22-16=(5^12×5^12)÷5^22-16=5^24÷5^22-16=5^2-16=25-16=9
^ înseamnă la puterea.

Answer 2

b)2^2x12:2^22-2^27:2^26
4-2=2
c)(5^2·5^12):5^22-2^4
5^2-16
25-16=9