Question

find the roots of the following quadratic equations by applying the quadratic formula
iv)x^2 + 5 = -6x​

Answer 1

Answer:

$(x2−5)(x+5)+25=0 \\ </p><p></p><p>x3−5x+5x2−25+25=0 \\ </p><p></p><p>x3+5x2−5x=0 \\ </p><p></p><p>x(x2+5x−5)=0 \\ </p><p></p><p>x=0 or x2+5x−5=0 \\ </p><p></p><p>x=0 or x=2−5±25+20=2−5±35</p><p></p><p></p><p>$