\(2x+2^5\cdot8^{24}=8^{26}\)

=>\(2x+2^5=8^{26}:8^{24}\)

=>\(2x+2^5=8^2\)

=>\(2x+32=64\)

=>\(2x=64-32\)

=>\(2x=32\)

=>\(x=32:2\)

=>\(x=16\)

dấu ^ là sao

=21,572⁵

TL:

7³ + 8² = 407

HT

bài 1: x.(x+7) = 0

Th1:x=0              Th2:x+7=0

                          =>x=-7

bài 2 (x+12).(x-3)= 0

Th1:x+12=0                                         Th2:x-3=0

=>x=-12                                                =>x=3

bài 3 (-x+5).(3-x)=0

Th1 (-x)+5=0                                          Th2:3-x=0

=>-x=-5                                                  =>x=3

bài 4 x.(2+x).(7-x)=0

Th1:x=0                                               Th3:7-x=0

Th2:2+x=0                                             =>x=7

=>x=-2

bài 5 (x-1).(x+2).(-x-3)=0

Th1:x-1=0                                               Th2:x+2=0

=>x=1                                                   =>x=-2

Th3:-x-3=0

=>-x=-3

2^x+3.4²=2⁶
2^x+3.2⁴=2⁶
2^x+3+4=2⁶
--> x+3+4=6
              x=6-4-3
              x=-1

2^x+3. (2²)² = 2⁶

2^x+3. 2⁴ = 2⁶

2^x+3+4 = 2⁶

2^x+7 = 2⁶

\(\Rightarrow x+7=6\)

\(\Rightarrow x=6-7=-1\)

các phân số = nhau:

-17/4=34/-8

-17/34=4/-8

4/-17=-8/34

34/-17=-8/4

HT

-17/34=4/-8  ;  34/-17=-8/4  ;  -17/4=34/-8  ;  -8/34=4/-17

HT