Question

Write the value of a ,b ,c in the quadratic equation x² -7x +5 =0 *

2 points

a =1 , b =7 , c =5

a =1 , b =-7 , c =5

a =2 , b = -7 , c = 5

a =5 , b =7 , c =1

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Answer 1

$\longmapsto$

FORMULA TO BE IMPLEMENTED

A general equation of quadratic equation is

$a {x}^{2} + bx + c = 0$

Where a, b, c are constants with

$a \ne \: 0$

$\longmapsto$CALCULATION

The given Quadratic Equation is

${x}^{2} - 7x + 5 = 0$

Comparing with general equation of quadratic equation

$a {x}^{2} + bx + c = 0$

We get

$a = 1 \: , \: b \: = - 7 \: , c = 5$

ADDITIONAL INFORMATION

one of the way to solve this equation is by SRIDHAR ACHARYYA FORMULA :

For any quadratic equation $a {x}^{2} + bx + c = 0$

The roots are given by $\displaystyle \: x = \frac{ - b \pm \: \sqrt{ {b}^{2} - 4ac } }{2a}$