Question

 

 

[(x mũ 2 cộng 5 mũ 4) - 42] nhân 2 = {2}

 

Answer 1

1. => 7*(x-5)=100-65 => x-5=35/7 => x=5+5 => x=10

2. => 12*(x-3)/(3*3)=(4*2)^3 => 12*(x-3)/9=8^3 => 12*(x-3)/9=512 => 12*(x-3)=512*9 => x-3= 4608/12 => x=384+3 => x=387

3. => 20+5x=5^5-3 => 20+5x=5^2 => 5x=25-20 => x=5/5 => x=1

4. => 5x-201=16*4 => 5x=64+201 => x=265/5 => x=53

5. => 3*(7+x)=88-64 => 7+x=24/3 => x=8-7 => x=1

6. => 131*x-941=2^7+3 => 131*x-941=2^10 => 131*x=1024+941 =>x= 1965/131 => x=15

7. đề nó cứ kiểu gì ý