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KengaRu [80]
3 years ago
11

Solve this quadratic equation by completing the square.

Mathematics
1 answer:
Anit [1.1K]3 years ago
7 0

Answer:

-2+√19 or x=-2-√19

Step-by-step explanation:

completing the square it results :

x=-2+√19 or x=-2-√19

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deff fn [24]

Answer:

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Step-by-step explanation:

7 0
3 years ago
hey the question is, " The length of a rectangle is twice its width. The perimeter of the rectangle is 126 feet."​
Tema [17]

Answer:

42 = <em>l</em>

21 = <em>w</em>

Step-by-step explanation:

{l = 2<em>w</em>

{126 = 2<em>w</em> + 2<em>l</em>

126 = 2<em>w</em> + 2[2<em>w</em>]

126 = 2<em>w</em> + 4<em>w</em>

126 = 6<em>w</em>

21 = w [Plug this back into both equations to get the length of 42]; 42 = <em>l</em>

I am joyous to assist you anytime.

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4 years ago
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madam [21]

Answer:

Step-by-step explanation:

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3 years ago
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