Question

by using the formula find the roots of x square-7x=5​

Answer 1

Answer:

Step-by-step explanation:

Step  1  :

Trying to factor by splitting the middle term

1.1     Factoring  x2-7x+5

The first term is,  x2  its coefficient is  1 .

The middle term is,  -7x  its coefficient is  -7 .

The last term, "the constant", is  +5

Step-1 : Multiply the coefficient of the first term by the constant   1 • 5 = 5

Step-2 : Find two factors of  5  whose sum equals the coefficient of the middle term, which is   -7 .

      -5     +     -1     =     -6  

      -1     +     -5     =     -6  

      1     +     5     =     6  

      5     +     1     =     6  

Observation : No two such factors can be found !!

Conclusion : Trinomial can not be factored

Equation at the end of step  1  :

 x2 - 7x + 5  = 0

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