x = 15-x = 15 / 5 = 1\(x = {-b \pm \sqrt{b^2-4ac} \over 2a}\)
\(x = {-b \pm \sqrt{b^2-4ac} \over 2a}\)\(\frac{\sqrt{5}+2\sqrt{6}\sqrt{8}-2\sqrt{15}}{\sqrt{7+2\sqrt{10}}}\)
5:7xy:2+1\(x = {-b \pm \sqrt{b^2-4ac} \over 2a}\)
\(x = {-b \pm \sqrt{b^2-4ac} \over 2a}\)1
1+1\(x = {-b \pm \sqrt{b^2-4ac} \over 2a}\)
\(x = {-b \pm \sqrt{b^2-4ac} \over 2a}\)
\(x = {-b \pm \sqrt{b^2-4ac} \over 2a}\)
1+1=
trên ko bít làm nhưng 1 + 1 thì bằng 2 nha
Học tốt
\(x = {-b \pm \sqrt{b^2-4ac} \over 2a}\) giãi x
\(x = {-b \pm \sqrt{b^2-4ac} \over 2a}\)
\(x = {-b \pm \sqrt{b^2-4ac} \over 2a}\)
\(x = {-b \pm \sqrt{b^2-4ac} \over 2a}\)
\(x = {-b \pm \sqrt{b^2-4ac} \over 2a}\)