How do you solve [(2^(2x)) - 3] * [(2^(x+2)) + 32] = 0[(22x)3][(2x+2)+32]=0?

1 Answer
Apr 11, 2018

x ~~ .7925x.7925

Explanation:

We can start by dividing one term from both side of the equation and simplifiying:

[(2^(2x)-3)]*[(2^(x+2))+32] = 0[(22x3)][(2x+2)+32]=0

[(2^(2x)-3)]*[(2^(x+2))+32]/[(2^(x+2))+32] = 0/[(2^(x+2))+32][(22x3)](2x+2)+32(2x+2)+32=0(2x+2)+32

2^(2x)-3 = 022x3=0

2^(2x) = 322x=3

Now we can take the Log of the equation with the base being that of the number with the variable in the exponent:

log_2 2^(2x)=log_2 3log222x=log23

As you may remember, this is equivalent to:

2x*(1) = 1.585...

Finally, solve for x

x ~~ .7925