Deveraidn
Answered

Sumali sa IDNStudy.com at simulang makuha ang maaasahang mga sagot. Sumali sa aming platform ng tanong at sagot upang makakuha ng eksaktong tugon sa lahat ng iyong mahahalagang tanong.

what is the quadratic equation by completing the square of r²-10r=-17

Sagot :

r²-10r=-17
r²-10r+25=-17+25
r²-10r+25=8
( r-5 )²=8
r-5 = positive or negative 2√2





[tex] r^{2} -10r = -17
r^{2} -10r +25 = -17 + 25
\boxed{r^{2} -10r +25 = 8}
 (r-5)^{2} = 8 r-5 = ±\sqrt{8} = ±2 \sqrt{2}
\boxed{r= 5 + 2 \sqrt{2} }
\boxed{r= 5- 2 \sqrt{2} }[/tex]

Note: Please disregard the A's.