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kobusy [5.1K]
2 years ago
14

7b^2 - 14b - 56 = 0 Solve by completing the square

Mathematics
1 answer:
Yakvenalex [24]2 years ago
5 0

Answer: <em>7(b-1)^2-63</em>

Step-by-step explanation:

Factor out 7

<em>7(b^2-2b-8)</em>

Add and subtract (-1)^2:

<em>7(b^2-2b-8+(-1)^2-(-1\)^2)</em>

Complete the square:

<em>7((b-1)^2-8-(-1)^2)</em>

<em />

Simplify:

<em>7(b-1)^2-63</em>

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Step-by-step explanation:

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En una competición participan 200 atletas, 2/5 son españoles, 1/3 del resto son franceses, 35 son alemanes y el resto son ingles
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7/40

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3 years ago
Can anybody answer this simple math question ive attached please
Vedmedyk [2.9K]
Well first you take the amount that Connor paid, $29.25 and subtract the base price for the pizza,  $17.50

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8 0
3 years ago
Please tell me? thx for ur help &lt;3
motikmotik

Answer:

x = 63, y = 27

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x and y sum to 90°

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4 0
3 years ago
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