SOLUTION: find the x-internet. round to the nearest tenth: {{{y=4x^2-7}}} {{{y=3x^2+2x-5}}}

SOLUTION: find the x-internet. round to the nearest tenth: {{{y=4x^2-7}}} {{{y=3x^2+2x-5}}}

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Question 241415: find the x-internet. round to the nearest tenth:

Answer by checkley77(12844) (Show Source): You can put this solution on YOUR website!
red line
set y=0 & solve for the x values.
4x^2=7
x^2=7/4
x=sqrt1.75
x=+-1.3 ans.
green line
set y=0 & solve for the x values.
3x^2+2x-5=0
(3x+5)(x-1)=0
3x+5=0
3x=-5
x=-5/3
x=-1.7 ans.
x-1=0
x=1 ans.
(graph 300x200 pixels, x from -6 to 5, y from -10 to 10, of TWO functions 4x^2 -7 and 3x^2 +2x -5).
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