Mathematics: factor completely 9x4 + 12x3 + 21x2. 3(3x4 + 4x3 + 7x2) 3x(3x3 + 4x2 + 7x) 3x2(3x2 + 4x + 7) prime

factor completely 9x4 + 12x3 + 21x2. 3(3x4 + 4x3 - id94123212334432900541, ochoanene822

ana2896

05.01.2022

The factor of $9 x^{4}+12 x^{3}+21 x^{2} \text { is } 3 x^{2}\left(3 x^{2}+4 x+7\right)$

Solution:

From question given that the equation is

$9 x^{4}+12 x^{3}+21 x^{2}$

We have to find the factors of the given equation.

By taking 3 as a common term in above expression,

$=3\left(3 x^{4}+4 x^{3}+7 x^{2}\right)$

By taking “x” as a common term in above expression, we get equation as

$=3 x\left(3 x^{3}+4 x^{2}+7 x\right)$

Again taking “x” as a common term in above expression, we get

$=3 x^{2}\left(3 x^{2}+4 x+7\right)$

$\left(3 x^{2}+4 x+7\right)$ cannot be factorized.(imaginary roots)

Hence factor of $9 x^{4}+12 x^{3}+21 x^{2} \text { is } 3 x^{2}\left(3 x^{2}+4 x+7\right)$

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slend3rpiggy

19.04.2020

Fluffy Kitty is the better buy.

Step-by-step explanation: Fluffy Kitty costs $1.46 per pound, and it is cheaper than Chow which is $1.86

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