SOLUTION: Identify all the real roots of each equation. {{{x^3-7x^2+8x+16=0}}} I don't know what to do in this problem.

Question 354883: Identify all the real roots of each equation.

I don't know what to do in this problem.
Answer by agentc0re(3) (Show Source): You can put this solution on YOUR website!
Well you will need to start out by factoring the problem.
We know that since it's a degree 3 polynomial that we're going to have something that looks like (x + )(x - ) , for this type of problem.

Knowing that, we know our roots are:
x = 4
x = -1
RELATED QUESTIONS
Find the real roots of each equation. If there are none state such. 16x^2 + 7x/7 =... (answered by mananth)

Find the four fourth roots of z=16(cos 4pi/3 + i sin 4pi/3) Write each root in standard... (answered by math_helper)

Please help find all the real roots of the equation... (answered by Alan3354)

pls. help me to solve this equation I really dont know how to get the root Using the... (answered by stanbon)

I really need help I don't get what to do. For each equation, find the number of complex... (answered by josgarithmetic)

2x2-7x+1=0 I know that the left side of the equation must =-1 but I don�t know how to... (answered by robertb)

Not really sure on what I'm suppose to do. This is all I know. PRACTICE: Use factoring (answered by Alan3354)

I do not know how to factor this equation: x^2-2xcos(theta)+1=0 in terms of x... (answered by swincher4391)

find all the roots of each equation.... (answered by longjonsilver)