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zysi [14]
2 years ago
8

PLEASE HELP IM FAILING ALGEBRA!! (SHOW WORK)

Mathematics
1 answer:
yanalaym [24]2 years ago
8 0

Answer:

The three dimensions are ( x-3)(x-1) and (x-4)

The missing dimension is x-4

Step-by-step explanation:

<u><em> Step(i):-</em></u>

Given that the polynomial

            x³ -8x²+19x -12=0

put x=3

 ⇒      27 -8(9)+19(3)-12 =0

          84-84 =0

            0=0

∴ x =3 is satisfies the given polynomial equation

one factor  x-3 =0

<u><em>Step(ii):-</em></u>

By using synthetic division method

     x=3     ↓     1    -8    19    -12

               <u> ↓     0   3    -15     12</u>

                <u>       1   - 5      4       0   </u>

The polynomial (x-3) ( x² -5x +4) =0

The factors of the given polynomial

             x-3 =0  and      x² - 5x +4 =0

                x =3   and   x² - 4x -x+4 =0        

                x =3   and  x( x-4) -1(x-4) =0

              ( x-3)    and (x-1)(x-4) =0

The three dimensions are ( x-3)(x-1) and (x-4)

<u><em>Final answer:-</em></u>

The missing dimension is x-4

<u />

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