Solve the equation 9x^2 + 8x – 5 = 3x^2to the nearest tenth.

9514 1404 393

  x ≈ {-1.8, 0.5}

Step-by-step explanation:

I find a graphing calculator to be about the easiest way to solve these. It is convenient to put the equation into the form f(x) = 0. Here we can do that by subtracting 3x^2 from both sides.

  9x^2 +8x -5 = 3x^2 . . . . . given

  6x^2 +8x -5 = 0 . . . . . . . . subtract 3x^2

The solutions to this are the x-intercepts of the graph:

  x = -1.8  or  +0.5

-4

step-by-step explanation:

do 6-10=

if u need it to be negative.

hello i am doing good for you that it's summer in your country or state ; )

btw in my country we just have sun and rain as (because i live in the caribbean lol)

also, thx a lot for the points : )