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Mathematics 20 Online
UkuleleGirl:

Is my math correct.

UkuleleGirl:

Question :\(4x^3-12x^2-x+3\)

UkuleleGirl:

my work: \((4x^3-12x^2)(-x+3)\) \(4x^2(x+3)-1(x+3)\) \((4x^2-1)(x+3)\) \((2x+1)(2x-1)(x+3)\) x=\[-\frac{ 1 }{ 2 }, \frac{ 1 }{ 2 },-3\]

CheeseStick7793:

(x-3)(2x+1)(2x-1)

UkuleleGirl:

If its minus 3 then it wouldn't match with the other side

CheeseStick7793:

its minus on both sides

UkuleleGirl:

oh.

UkuleleGirl:

I guess I did that part wrong

CheeseStick7793:

not neccecerly

CheeseStick7793:

but i don't know about X=

UkuleleGirl:

oh

CheeseStick7793:

ill work on tht

CheeseStick7793:

hold on

CheeseStick7793:

i don't know about "X" so maybe with my answer you could figure out "X" on your own

CheeseStick7793:

srry i tried

UkuleleGirl:

its ok

UkuleleGirl:

What you said was correct. The right answer is -\(\frac{1}{2}, \frac{1}{2}, -3\)

UkuleleGirl:

WAIT NOT -3 i meant postive 3

CheeseStick7793:

yes i think

CheeseStick7793:

just go with wht u got

UkuleleGirl:

thanks for helping

CheeseStick7793:

yw

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