Question

alguem sabe a conta x²-10x+3=0

Answer 1

100-4*1*3
100-12
88
10+-raiz88/2*1
10+-2raiz de 22/2
10+2raiz de 22/2----10+raiz de 22
10-2raiz de 22/2----10-raiz de 22

Answer 2

$x^{2} -10x+3=0 \\ a=1;b=-10;c=3 \\ \\ \Delta= b^{2} -4ac \\ \Delta=( -10)^{2} -4.1.3 \\ \Delta=100-12 \\ \Delta=88 \\ \\ x= \frac{-b+- \sqrt{\Delta} }{2a} \\ x= \frac{-(-10)+- \sqrt{88} }{2.1} \\ x= \frac{10+-9,4}{2} \\ \\ x'= \frac{10+9,4}{2} \\ x'= \frac{19,4}{2} \\ \\ x''= \frac{10-9,4}{2} \\ x''= \frac{0,6}{2} \\ \\ S=( \frac{19,4}{2}; \frac{0,6}{2} )$