С^5·p^7
4,35·10² = 435
1/3 = 3^-1
1/3 = (1/3)^1
3у -2 = у+5
2у = 7
у = 3,5
7r -2 +11r -1 = 0
18r = 3
r = 1/6
1) 987+983 = 1970
2) 1970^2 = 3880900
3) 4* 987 = 3948
4) 3948 * 983 = 3880884
5) 3880900 - 3880884 = 16
<span>2x-3y=3
</span><span>x+3y=18
</span>
3x=21
x=21
21+3y=18
3y=-3
y=-1
<span>2x+y=5,4 | *-1
</span><span>x+y=6,4 |
</span>
-2x-y=-5,4
x+y=6,4
-x=1
x=-1
-1+y=6,4
y=7,4
<span>2x-3y=5 |*-1
</span><span>5x-3y=11 |
</span>-2x+3y=-5
5x-3y=11
3x=6
x=2
4-3y=5
-3y=1
y=-¹/₃