Question

Find the roots of the quadratic equations 1/x+4 - 1/x-7= 11/39 by formula method.​

Answer 1

Answer:

b square minus 4ac

and

-b +/-squareroot b square minus 4ac divided by 2a

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Answer 2

Answer:

The solution of the expression is

x=2,1

Step-by-step explanation:

$\large{\underline{\color{red}{\textsf{\textbf{Given:- }}}}}$

Expression 1/x+4 - 1/z-7=11/30

$\large{\underline{\color{pink}{\textsf{\textbf{Taking \: LCM :-}}}}}$

X-7-X-4/(x+4)(x-7) -11/30

$\large{\underline{\color{blue}{\textsf{\textbf{Cross \: multiply:- }}}}}$

(x+4)(x-7)= -30×11/11

(x+4)(x-7)=-30

$\large{\underline{\color{blue}{\textsf{\textbf{multiply \: the \: term:- }}}}}$

x -7x+4x-28=-30

x -3x-28+30=0

x -3x+2=0

$\large{\underline{\color{blue}{\textsf{\textbf{Hope \: it \: helps}}}}}$