SOLUTION: a)Solve {{{7x+x(x-3)=0}}} -What are the solutions? x=____ (Simplify your answer. Type exact answers, using radicals as needed. Express complex numbers in terms of i. Use a co

Algebra.Com
Question 394985: a)Solve
-What are the solutions?
x=____
(Simplify your answer. Type exact answers, using radicals as needed. Express complex numbers in terms of i. Use a comma to separate answers as needed.)
b)Find the x-intercepts of .
-What are the x-intercepts?
(Type an ordered pair. Simplify your answer. Type an exact answer, using radicals as needed. Express complex numbers in terms of i. Use a comma to separate answers as needed.}
Found 2 solutions by scott8148, ewatrrr:
Answer by scott8148(6628)   (Show Source): You can put this solution on YOUR website!
distributing ___ 7x + x^2 - 3x = 0 ___ x^2 + 4x = 0

factoring ___ x(x + 4) = 0

x = 0

x + 4 = 0 ___ x = -4
Answer by ewatrrr(24785)   (Show Source): You can put this solution on YOUR website!


Hi

Solving for x



   x^2 + 4x = 0

  x(x+4) = 0

  x = 0

 (x+4) = 0

  x = -4

x-intercepts:  When (f(x) = 0

   |found x values above

 Pt(0,0) and Pt(-4,0) are the x-intercepts



 

RELATED QUESTIONS


Solve 3x^2-7x-13=0
	What are the solutions? X=___(Type exact solutions using radicals as  (answered by jorel1380)

I am totally stuck.  I do not think I can answer in decimals, yet that is what I keep... (answered by jim_thompson5910)

Solve: {{{5x^2=15}}}
What are the solutions?
x=___
(Type an exact answer, using... (answered by stanbon)

Solve 4x^2=20
Find the x-intercepts of f(x)=4x^2-20.
What are the solutions? x=?(type... (answered by Fombitz)

I’m really confused with this; please help me solve this problem.
a) Solve x^2+7x-1=0... (answered by Alan3354)

solve by completing the square
x^2-6x-4=0 

simplify your answer. type an exact answer  (answered by mananth)

Solve.
{{{4x^4-16x^2+15=0}}}
The solution is x=____.
(Simplify your answer.  Type an... (answered by robertb)

solve x^2+18x-4=0  simplify your answers. Use a comma to separate answers as needed. Type  (answered by jsmallt9)

Give exact and approximate solutions to three decimal places.
{{{x^2+12x+36=64}}}
What... (answered by scott8148)