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08-04-2021
Mathematics

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Find the x-intercept(s) Round to nearest hundredth if needed y=-2x^2-8x-4

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08-04-2021

y=-2x^2-8x-4

-2x^2-8x=4

divide by negative 2

x^2+4x=-2

complete the square

(x+2)^2=-2+4

(x+2)^2=2

x+2=±[tex]\sqrt{2}[/tex]

x=-2±[tex]\sqrt{2}[/tex]

nearest hundreths,

x=-0.59

x=-3.41

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