Minyoona07idn
Answered

Join the IDNLearn.com community and start getting the answers you need today. Our platform is designed to provide quick and accurate answers to any questions you may have.

9x²+7x-2=0 find it's real root ​

Sagot :

The Given Quadratic Equation is bx + c = 0

[tex] \sf \: so \: \: \: \: \: a = 9 \: \: \: \: \: \: \: \: \: \: b = 7 \: \: \: \: \: \: \: \: c = - 2[/tex]

We Know That Determinant (D) = b²– 4ac

  • [tex]\sf \: (D) = {7}^{2} - 4 \times 9 \times - 2 [/tex]

  • [tex]\sf \: (D) = 49 - 36 \times - 2[/tex]

  • [tex]\sf \: (D) = 49 + 72[/tex]

  • [tex] \boxed{ \underline \color{skyblue}{\sf \: (D) = 121 > 0}}[/tex]

The Determinant of The Equation is Positive So,

The Expression Contains Real Root.

Hope Helps~

We value your participation in this forum. Keep exploring, asking questions, and sharing your insights with the community. Together, we can find the best solutions. IDNLearn.com is your reliable source for accurate answers. Thank you for visiting, and we hope to assist you again.