playfulporpoise06
Answered

Looking for answers? Westonci.ca is your go-to Q&A platform, offering quick, trustworthy responses from a community of experts. Get the answers you need quickly and accurately from a dedicated community of experts on our Q&A platform. Experience the convenience of finding accurate answers to your questions from knowledgeable experts on our platform.

Solve ² + 12x = -20 by completing the square.

1. Add [b/2]² to bath sides of the equation. The value of [b/2]² in this equation is
A. 6
B. 10
C. 36 (CORRECT)
D. 100

2. Write the left side of the equation as a binomial squared. The left side of the equation becomes:
A. x+3
B. x+6 (CORRECT)
C. x+10
D. x+12

3. Use the square root property of equality.

4. Isolate the variable: x =
A. -4 or 4
B. -6 or 6
C. 2 or 10
D. -10 or -2 (CORRECT)​

I got it correct on Edge

Sagot :

Medunno13

1) Here, [tex]b=12[/tex], so [tex](b/2)^{2}=(12/2)^{2}=\boxed{36}[/tex]

2) If we add 36 to both sides, we get [tex]x^{2}+12x+36=16 \longrightarrow \boxed{(x+6)}^{2}=16[/tex]

3) If we take the square root of both sides,

[tex]x+6=\pm 4\\x=-10, -2[/tex]

Visit us again for up-to-date and reliable answers. We're always ready to assist you with your informational needs. Thank you for choosing our platform. We're dedicated to providing the best answers for all your questions. Visit us again. Thank you for trusting Westonci.ca. Don't forget to revisit us for more accurate and insightful answers.