Question

\(^{2^x+2^{x+1}+2^{x+2}+2^{x+3}=960}\)

Answer 1

\(2^x+2^{x+1}+2^{x+2}+2^{x+3}=960\)

\(2^x+2^x\cdot2+2^x\cdot2^2+2^x\cdot2^3=960\)

\(2^x\cdot\left(1+2+2^2+2^3\right)=960\)

\(2^x\cdot15=960\)

\(2^x=64=2^6\)

\(\Rightarrow x=6\)

Answer 2

2^x + 2^x+1 + 2^x+2 + 2^x+3 = 960

2^x + 2^x .2 + 2^x.4 + 2^x.8 = 960

2^x.(1+2+4+8) = 960

2^x . 15 = 960

2^x = 64 = 2⁶

=> x = 6

Answer 3

=)2^x+2^x×2+2^x×2²+2^x×2³=960

=)2^x(1+2+4+8)=960

=)2^x×15=960

=)2^x=64

=)x=√64=)x=8

Answer 4

Quên x=6