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dem82 [27]
3 years ago
8

(x-5)(3x-8)=(4-3x)(6-x)+13​

Mathematics
1 answer:
DiKsa [7]3 years ago
5 0

Answer:

x = 3

Step-by-step explanation:

Use FOIL method

(x - 5)(3x - 8) = x*3x + x*(-8) + (-5)*(3x) + (-5)*(-8)

                     = 3x² <u>- 8x - 15x</u> + 40        {Combine like terms}

                     = 3x² <u>- 23x</u> + 40

(4 - 3x)( 6 - x) = 4*6 + 4 *(-x) + (-3x)*6 + (-3x)*(-x)

                      = 24  <u>- 4x - 18x </u>+ 3x²         {Combine like terms}

                     = 3x² <u>- 22x</u> + 24  

(x - 5)(3x - 8) = (4 - 3x)( 6 - x) + 13

3x² - 23x + 40 = 3x² -22x + 24  + 13

3x² - 23x  + 40 - 3x²  + 22x  - 24 - 13 = 0

<u>3x² - 3x²</u> - 23x + 22x  + 40 - 24 - 13 = 0   {Combine like terms}

<u>0 </u>   - x  = 0

 -x +3= 0

         3 = x

x =3

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