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Klio2033 [76]
3 years ago
15

solve the equation x +4x-7=0 by completing the square. give your answers correct to two decimal places

Mathematics
1 answer:
olga2289 [7]3 years ago
6 0

Answer:

X= 1.4 OR 7/5 OR 1 2/5

Step-by-step explanation:

x+4x-7=0 (First, Combine Like Terms)

5x-7=0 (Then, Add 7 to both sides)

+7 +7

5x=7 (Now, divide both sides by 5)

/5 /5

You get X= 1.4 OR 7/5 OR 1 2/5

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4 0
3 years ago
How to solve this problem
lozanna [386]

Answer:

<em>x = 2</em>

Step-by-step explanation:

We are given the equation 3 - 4x - 2 = 2x - 11;

3 - 4x - 2 = 2x - 11,\\3 - 2 = 6x - 11,\\1 = 6x - 11,\\12 = 6x,\\\\x = 2\\Conclusion, x = 2

If you want this explanation in a " statement reasoning " format refer to the attachment below;

8 0
3 years ago
Do you need to use fewer centmeters than meters to measure a cabinet
creativ13 [48]

Answer:

No. You need more centimeters because meters are bigger.

Step-by-step explanation:

They're bigger.

Hope this helps!

8 0
3 years ago
Read 2 more answers
Factorize: x² + 3x + 2​
zvonat [6]

Step-by-step explanation:

x² + 3x + 2

x² + x + 2x + 2 because 1+2=3 and 2×1=2

By taking out common terms, we get

x(x+1)+2(x+1)

(x+1)(x+2)

7 0
3 years ago
Please helpppppppppp
Alika [10]

Answer:

x = 1/3

Step-by-step explanation:

f(x) = -3x^2 + 2x-17

This is in the form

ax^2 +bx+c

a = -3  b = 2  c = -17

The axis of symmetry is at

x = -b/2a

x = -2/ (2*-3)

x = -2/-6

x = 1/3

8 0
3 years ago
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