x is undefined
we move all the terms to the left
8x-5-(2x(3x+1)+2x)=0
we calculate terms In parentheses; (2(3x+1)+2x), so we multiply parentheses
6x+2+2x
we add all the numbers together, and all the variables 8x+2
back to the equation
-(8x+2)
we get rid of all parentheses
8x-8x-2-5=0
we add all the number together and all the variables
0x-7=0
we move all terms containing x to the left all other terms to the right
0x=7
therefore x=7/0
which means x is undefined
<span>2 log 3(x-1)=log(4 x 2-25)
1. Determine the domain. Since the input to the log function cannot be zero or negative, 4x^2-25 must be </span>≥ 0. Thus, x^2 must be >0, or x>0. Same domain applies to log (3(x-1); x must be > 0.
2. Rewrite <span>2 log 3(x-1) as log 3(x-1)^2.
3. Then we have </span>log 3(x-1)^2 = log(4 x 2-25). We can discard the operator "log" from both sides: 3(x-1)^2 = 4 x 2-25. There are various ways in which to solve this. Since you're supposed to "use technology,"
graph y = 3(x-1)^2 and y = 4x^2 - 25 on the same set of axes. Determine, using visual estimation or your calculator's tools, the value or values of x that satisfy this equation. My result was x=3, y =11.
Answer:
对不起兄弟我不知道Duìbùqǐ xiōngdì wǒ bù zhīdàocyclone are also known as twisters,
6.3 x 10'-8
63 - 8
55
55 is the answer