Question

scrieti ecuatii de gradul ll cu Solutia 4-√3;4+√3

Answer 1

$x1=4- \sqrt{3 \\ } \\ x2=4+ \sqrt{3} \\ (x-x1)(x-x2)=(x-4+ \sqrt{3} )(x-4- \sqrt{3} )= x^{2} -4x-x \sqrt{3} -4x+ \\ +16+4 \sqrt{3} +x \sqrt{3} -4 \sqrt{3} -3= \\ x^{2} -8x+13=0$