Best Answer

-95

-3(-2)squared times (-4)(-2) plus 1

-3(-4)(-8)+1

(12)(-8)=1

(-96)+1

-95

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Q: Evaluate -3x2 4x plus 1 when x equals -2?

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

3x2= 6 6-(4x-2)= 6--8= 6+8 = 14 14+7 = 21

The discriminant is -32.

They are: x = 5/3 and x = -3

It is: x = 5/3 and x = -3

two complex

No real roots.

3x2 + 4x factors to x(3x + 4)

3x2 + 4x + 1 = ?? This is a quadratic equation. The equation can be made to equal any number and this will determine the corresponding values of x. EXAMPLE : 3x2 + 4x + 1 = 96 (x = 5 or x = -19/3) Alternatively, if x is known then this will determine the result. EXAMPLE : If x = 2 then (3 x 4) + (4 x 2) + 1 = 12 + 8 + 1 = 21 In normal use, a quadratic equation is presented as equal to zero. In this example : 3x2 + 4x + 1 = 0

3x2-4x-15 = 0 (3x+5)(x-3) = 0 x = -5/3 or x = 3

The degree of this polynomial is 2.

It is a second degree polynomial.