Solve x2 + 12x = –20 by completing the square. add to both sides of the equation. the value of in this equation is . write the left side of the equation as a binomial squared. the left side of the equation becomes ()2. use the square root property of equality. isolate the variable: x =

Solve x2 + 12x = –20 by completing the square.

Add (StartFraction b Over 2 EndFraction) squared to both sides of the equation. The value of (StartFraction b Over 2 EndFraction) squared in this equation is

✔ 36

.

Write the left side of the equation as a binomial squared. The left side of the equation becomes (

✔ x + 6

)2.

Use the square root property of equality.

Isolate the variable: x =

✔ –10 or –2

a) 0.25x times 3. (could be wrong on equation.)

b) 2.25 pound of dark chocolate. (can i eat all the chocolate? plz? anyway, again, could be wrong, but i hope im right. all the chocolate together should be 5.25 pounds)

have a good day!

step-by-step explanation:

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