Question

va rogg dau coroana c.d

Answer 1

c)

=[(2^3)^7*(2^2)^5:(2^4)^7-3^10 * (3^3)^5 :(3^4)^6]:5=

=[2^21*2^10:2^28-3^10 * 3^15 :3^24]:5=

=[2^3-3]:5=5:5=1

d)

=(5^2)^5*(5^3)^6-(5^4)^6*5^4=

=5^10*5^18-5*24^5^4=0

unde 5^2 e scrierea pt 5 la a doua

Answer 2

c) [8'7 * 4'5 : 16'7 - 3'10 * 27'5 : 81'6]:5=
= [ (2'3)'7 * (2'2)'5 : (2'4)'7 - 3'10 * (3'3)'5 : (3'4)'6]:5=
= ( 2'21 * 2'10 : 2'28 - 3'10*3'15 : 3'24 ):5=
= ( 2'31: 2'28 - 3'25 : 3'24 ) :5=
= ( 2'3 - 3'1 ) :5=
= ( 8 - 3 ):5=
= 5:5=
= 1

d) 25'5 * 125'6 - 625'6 * 5'4=
= (5'2)'5 * (5'3)'6 - (5'4)'6 * 5'4=
= 5'10 * 5'18 - 5'24 * 5'4=
= 5'28 - 5'28
= 0