Question

@mayliz please check?

Answer 1

\[x=\frac{ 7 }{ 2 } \pm \frac{ \sqrt{29} }{ 2 } \]

Answer 2

can i ask why?

Answer 3

This is the quadratic formula For
\[x ^{2}+bx+c=0\]
\[x=\frac{ -b \pm \sqrt{b ^{2}-4ac} }{ 2a }\]

Answer 4

use this and find x

Answer 5

\[y= \frac{ -7+\sqrt{7^{2}-4(-1)(-5) } }{ 2 }\]

Answer 6

\[y= \frac{ -7 \pm \sqrt{49-20 } }{ -2 }\]

Answer 7

\[y= \frac{ -7\pm \sqrt{ 29} }{ -2 }\]

Answer 8

X1 \[x=\frac{ -(7+\sqrt{29} )}{ -2}=\frac{ 7+\sqrt{29} }{ 2 }\]
X2
\[x=\frac{ -(7-\sqrt{29}) }{ -2 } =\frac{ 7-\sqrt{29} }{ 2 }\]