esagreromendoza esagreromendoza
  • 13-02-2020
  • Mathematics
contestada

How to you solve x2 -20x -17 = -53

Respuesta :

Kiara81304
Kiara81304 Kiara81304
  • 13-02-2020

Answer:

solve for x

x=2

Step-by-step explanation:

x2-20x-17=-53

reorder like terms x2= 2x       2x=20x-17=-53

collect like terms 2x-20x=-18x           -18x-17=-53

move constant to the right hand side and change its sign   -18x=-53+17

calculate the sum -53+17= -36         -18x=-36

divide both sides by -18  -18x÷-18= x        -36÷-18=2

x=2

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