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

User Maximos
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1 Answer

3 votes

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=±
√(2)

x=-2±
√(2)

nearest hundreths,

x=-0.59

x=-3.41

User Mreichelt
by
8.3k points

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