Q: What is the x intercept for y equals -3x2 plus 12x-9?

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3x2 = 21 describes two single values, and does not have an x intercept. 3x2 = 21 ∴ x2 = 7 ∴ x = ±√7

3x2 + 17x + c = 0, rearranging gives c = -3x2 - 17x

x=-.25.

Yes.

-2

Related questions

3x2 = 21 describes two single values, and does not have an x intercept. 3x2 = 21 ∴ x2 = 7 ∴ x = ±√7

3x2=6+38=44

3x2 + 17x + c = 0, rearranging gives c = -3x2 - 17x

In general, no.

y2=x3+3x2

x=-.25.

No real roots.

Yes.

56

3

no 3x2=6 then 4x-15= -60 so 6 added with - 60 = -54

x2-5-4x2+3x = 0 -3x2+3x-5 = 0 or as 3x2-3x+5 = 0