Answered

At Westonci.ca, we connect you with experts who provide detailed answers to your most pressing questions. Start exploring now! Get quick and reliable solutions to your questions from a community of experienced professionals on our platform. Get detailed and accurate answers to your questions from a dedicated community of experts on our Q&A platform.

Use the quadratic formula to solve x2 + 7x + 8 = 0. Estimate irrational solutions to the nearest tenth.

Sagot :

Lilith
[tex]x^2 + 7x + 8 = 0\\ \\a=1, \ b=7 ,\ c=8 \\ \\ x_{1}=\frac{-b-\sqrt{b^2-4ac}}{2a}=\frac{-7-\sqrt{7^2-4 \cdot 1\cdot 8}}{2 \cdot 1}=\frac{-7-\sqrt{49-32}}{2}=\frac{-7-\sqrt{17}}{2}\\ \\x_{2}=\frac{-b+\sqrt{b^2-4ac}}{2a}=\frac{-7+\sqrt{7^2-4 \cdot 1\cdot 8}}{2 \cdot 1}=\frac{-7+\sqrt{49-32}}{2}=\frac{-7+\sqrt{17}}{2}[/tex]


gabrieldavidmilGabe

Answer:

Step-by-step explanation:

View image gabrieldavidmilGabe
We appreciate your time. Please revisit us for more reliable answers to any questions you may have. Thank you for visiting. Our goal is to provide the most accurate answers for all your informational needs. Come back soon. Thank you for visiting Westonci.ca, your go-to source for reliable answers. Come back soon for more expert insights.