SOLUTION: Find all real solutions to each equation or inequality. For the
inequalities, also sketch the graph of the solution set.
8x^3 -27=0
Algebra.Com
Question 169340: Find all real solutions to each equation or inequality. For the
inequalities, also sketch the graph of the solution set.
8x^3 -27=0
Answer by gonzo(654) (Show Source): You can put this solution on YOUR website!
add 27 to both sides of the equation:
divide both sides of equation by 8:
take cube root of both sides of equation:
which is the same as:
which becomes:
-----
original equation is:
substituting (3/2) for x in original equation gets:
which is the same as:
which becomes:
which becomes:
which becomes:
which is true proving that x = (3/2) is the correct answer.
RELATED QUESTIONS
"Find all real solutions to each equation or inequality. For the
inequalities, also... (answered by nerdybill)
The graph of y=x^2+4x+4 is used to graph and solve 3 quadratic inequalities. Her three... (answered by stanbon)
I am stuck on these two one-variable compound inequalities:
#1. -10 < -2 + 8x < 22 &
(answered by Fombitz)
My and compound inequality is
0<4+2x<22
My or compound inequality is
3x+6<-3 or... (answered by lynnlo)
Solve the compound inequalities. Show the solution sets written algebraically and as a... (answered by josgarithmetic)
(x+5)(x+6)(x+2)>0
Select the correct choice below, and if necessary, fill in the answer... (answered by jsmallt9)
Your or compound inequality
1 x ≥ -3 or 5x 1 > 19
Solve the compound... (answered by stanbon)
Solve the inequality, graph the solutions set on a real number line, and then write the... (answered by lwsshak3)
2(x-5)=2x+10 and 5x -5=3x-7+2(x+1) for each equation write the answer as No Solution... (answered by ewatrrr)