alainazoha2007 alainazoha2007

18-06-2020
Mathematics

contestada

) If (7-3)2 x 7x+4 = 77, find the value of x.

Respuesta :

odurocollins300 odurocollins300

23-06-2020

Answer:

Solve for x:

56 x^2 + 4 = 77

Subtract 4 from both sides:

56 x^2 = 73

Divide both sides by 56:

x^2 = 73/56

Take the square root of both sides:

Answer: |

| x = sqrt(73/14)/2 or x = -sqrt(73/14)/2

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