Algebra

posted by .

Can someone please help me with this problem? I can not figure it out. Thank you.

solve 4x + x(x-1)=0,

find the x-intercepts of
f(x)=4x+x(x-1)

  • Algebra -

    The x(-axis) intercepts are the points on the curve where y = 0.

    In this case, you can find them by solving
    0 = 4x + x(x-1) = x^2 + 3x = x(x+3)
    This equation is satisfied at x=0 and x=-3
    The x-intercepts are therefore at
    (x,y) = (-3,0) and (0,0).

  • Algebra -

    This equation can be solved by factoring:
    4x + x(x-1)=0
    x(4+x-1)=0
    x(x+3)=0
    therefore
    x=0 or x+3=0
    Can you take it from here?

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Algebra

    5. Find the x and y intercepts of each linear equation. Be sure to write your answers as ordered pairs. y = 3x - 6 6y = -x + 2 The y intercepts is when x=0 So put in x=0 in each, and solve for y. The x intercepts is when y=0, put in …
  2. Algebra

    I am having trouble with the following problem can someone please help me to figure out how to work it..... -8x-21= -23 2/3
  3. College Algebra

    I could not figure out the answer to this Problem: The quadratic function f(x)= -2x^2 =4x +3 can be used to solve the following inequality: -2x^2 -4x < -3 First use the Quadratic Formula to find the x-intercept of f. This problem …
  4. Algebra

    Hi! Today I was absent from my algebra class, and they learned how to recognize and factor the difference of two squares.. I've tried to figure it out from the book, but it's not making any sense... Can someone help?
  5. Math - x-intercepts and y-intercepts

    Hi, can someone help me with intercepts. find the intercepts of f(x) = x^2 - 6x - 2 can someone show how to work this problem. thanks.
  6. Basic Algebra

    I am having a hard time trying to figure out this problem, if someone could help me...I'd appreciate it: I have to solve the problem 7x-(6x+4)=4
  7. PreCalculus

    I'm trying to find the x-intercepts of a polynomial function = 4x^4-3x^3-6x^2+2x+6. I don't want anyone to solve it, could someone please just tell me how to start factoring this so I can find the x-intercepts, I'm lost.
  8. college algebra

    Can someone please help me find the x-intercepts and y-intecepts of this equation. I have the radius, and center but I can't seem to get the intercepts. x^2+y^2=16x-18y+145=25 Please show work. Thanks!!
  9. algebra

    Find the x-intercepts and y-intercepts for f(x) f(x)=x^2-4x + 1 I have been trying to figure this one out for hours and I find no solution but there has to be a way to figure this out and I can't. Please help!! Thank you
  10. statistics - can someone please Help me

    I have tried for days to figure out how to work this problem. Please help show me how to find the answer. A particular radioactive isotope decays from 210 mg to 182.7 mg in 15 days. Find the half life of the isotope. I can not find …

More Similar Questions