Question

Solve the quadratic equation:

x^2 +3x-20=0​

Answer 1

HEY HERE IS YOUR ANSWER

STEP BY STEP EXPLANATION.....


QUADRATIC EQUATION FORMULA

$- b + or - \sqrt({ {b}^{2} } - 4ac) \div 2a$
so

${x}^{2} + 3x - 20$
$a = 1 \\ b = 3 \\ c = - 20$

$( - 3 \frac{ + }{ - } \sqrt{( {3}^{2} } - 4(1)( - 20)) \div 2(1)$
$( - 3 \frac{ + }{ - } \sqrt({9} + 80)) \div 2$

$(- 3 \frac{ + }{ - } \sqrt{89} ) \div 2 \\ = ( - 3 + \sqrt{89} ) \div 2 \: \: or \: \: (- 3 - \sqrt{89} ) \div 2$
STEP BY STEP EXPLANATION

MARK AS BRAINLIEST