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Create find_roots_of_quadratic_equation.php #7506

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May 5, 2023
Merged

Create find_roots_of_quadratic_equation.php #7506

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6cca007
Create find_roots_of_quadratic_equation.php
Roybas2001 May 2, 2023
3394a3c
Merge branch 'master' into find-roots-of-quadratic-equation
hi-Kartik2004 May 5, 2023
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14 changes: 14 additions & 0 deletions program/find-roots-of-quadratic-equation/find_roots_of_quadratic_equation.php
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<?php
// Give the input values for the formula
$inputA = 5;
$inputB = 10;
$inputC = 2;

// $sumD is the part of the equation that is inside of the square root
$sumD = pow($inputB, 2) - 4 * $inputA * $inputC;

// The rest of the equation. Everything is put in () so it is calculated in the right order.
$outputPositive = (-$inputB + pow($sumD, 0.5)) / (2 * $inputA);
$outputNegative = (-$inputB - pow($sumD, 0.5)) / (2 * $inputA);

echo "x = $outputPositive &nbsp; or &nbsp; x = $outputNegative";