(5^16+16^5)(3^17-3^10)(2^4-4^2)
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[(516+416).317.310)].(24-42)
=[(516+416).317.310)].(16-16)
=[(516+416).317.310)].0
=0
Giải :
[( 516 + 416 ) . 317. 310 )] . ( 24- 42 )
= [( 516 + 416 ) . 317. 310 )] . [ 24 - ( 22 )2]
= [( 516 + 416 ) . 317. 310 )] . [ 24 - 24)
= [( 516 + 416 ) . 317. 310 )].0
= 0
(516 + 165) . (317 - 310) . (24 - 42)
= (152587890625 + 1048576) . (129140163 - 59049) . (16 - 16)
= 152588939201 . 129081114 . 0
= 0
`(5^(16) +16^5)(3^(17)-3^(10))(2^4-4^2)`
`=(5^(16)+16^5)(3^(17)-3^(10))(16-16)`
`=(5^(16)+16^5)(3^(17)-3^(10))0`
`=0`
1: \(=-145\cdot13+145\cdot57+57\cdot10-57\cdot145=-1315\)
2: \(=17\cdot15-17\cdot16+16\cdot17-16\cdot20=255-320=-65\)
3: \(=-38\cdot25+38\cdot4-25\cdot4+25\cdot38=13\cdot4=52\)
4: \(=23\cdot145-23\cdot17-145\cdot23+145\cdot6=479\)
5: \(=24\cdot15-24\cdot4+4\cdot24-4\cdot15=360-60=300\)
6: \(=199\left(15-17+17-5\right)=199\cdot10=1990\)
7: \(=-39\cdot5+39\cdot99+99\cdot10-99\cdot39=795\)
Tìm số nguyên x, biết:
1) -16 + 23 + x = - 16
7+x=-16
x=-16-7
x=-23
2) 2x – 35 = 15
2x=15+35
2x=50
x=50:2
x=25
3) 3x + 17 = 12
3x=12-17
3x=-5
x=-5/3
4) (2x – 5) + 17 = 6
2x-5=6-17
2x-5=-11
2x=-11+5
2x=-6
x=-6:2
x=-3
5) 10 – 2(4 – 3x) = -4
2(4-3x)=10-(-4)
2(4-3x)=14
4-3x=14:2
4-3x=7
3x=4-7
3x=-3
x=-3:3
x=-1
6) - 12 + 3(-x + 7) = -18
3(-x+7)=-18-(-12)
3(x+7)=-6
x+7=-6:3
x+7=-2
x=-2-7
x=-9
(\(5^{16}\)+\(16^5\))(\(3^{17}\) -\(3^{10}\))(\(2^4\) -\(4^2\) )
=(\(5^{16}\) +\(16^5\))(\(3^{17}\) -\(3^{10}\))(16-16)
=(\(5^{16}\)+\(16^5\) )(\(3^{17}\) - \(3^{10}\)) .0
=0