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4 votes
Solve the equation: x2-6x+5=0
a. 2,1
b. no solutions
c.1,5
d.1

2 Answers

4 votes

Answer:

c) 5,1

Explanation:

x^2-6x+5=0

we can solve this by two methodes which is middle term or by a formula, which is=

-b+_(under route)b^2-4ac

x= _______________________

2a

-(-6)+-(under route)-6^2-4(1)(5)

so, x=_________________________

2(1)

x=5 or, x=1

(answer)

User Natheer Alabsi
by
8.2k points
7 votes


\huge{\sf{\underline{\underline{Answer \ :}}}}

The correct solutions of the equation
\sf{x^2 \ - \ 6x \ + \ 5 \= \ 0} are 1 and 5. i.e. Option C is correct.


\large{\bf{\underline{\underline{Explanation \ :}}}}


\implies We can solve the equations by using the quadratic formula :


\rightarrow{\bf{\boxed{\boxed{ x = (-b \± √(b^2 - 4ac))/(2a) }}}}

Where a,b, and c are the coefficients of the equation. i.e.

  • a = 1
  • b = -6
  • c = 5

__________________[Putting values]


\sf{\implies x = (-(-6)\± √(-6 - 4(1)(5)) )/((1))}\\ \\ \sf{\implies x = (6 \± √(36 - 20) )/(2)} \\ \\ \sf{\implies x = (6 \± √(16) )/(y)} \\ \\ \sf{\implies x = (6 \± 4)/(2)} \\ \\ \bf{When \ Positive} \\ \\ \sf{\implies x = (10)/(2)} \\ \\ \sf{\boxed{x = 5}} \\ \\ \bf{When \ negative} \\ \\ \sf{\implies x = (2)/(2) } \\ \\ \sf{\boxed{x=1}}

User Varis Darasirikul
by
8.6k points

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