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Step2247 [10]
3 years ago
6

Solve 3(2x+1) over 5 =2x-5

Mathematics
2 answers:
xenn [34]3 years ago
8 0
Cross multiply
3(2x + 1) = 5(2x - 5)
expand by using distributive property
6x + 3 = 10x - 25
-4x = - 28
   x = 7
AfilCa [17]3 years ago
6 0
X=7
//////////////////
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Answer:

Completing the square.

Step-by-step explanation:

since there is no "a" term and the bx term is even, completing the square is your best bet.

6 0
3 years ago
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Identify the zeros of the function f(x) = 2x^2 − 4x + 5 using the Quadratic Formula
Nostrana [21]

For this case we have that by definition, the roots, or also called zeros, of the quadratic function are those values of x for which the expression is 0.

Then, we must find the roots of:

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a = 2\\b = -4\\c = 5

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x = \frac {- (- 4) \pm \sqrt {(- 4) ^ 2-4 (2) (5)}} {2 (2)}\\x = \frac {4 \pm \sqrt {16-40}} {4}\\x = \frac {4 \pm \sqrt {-24}} {4}

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x_ {1} = \frac {2 + i \sqrt {6}} {2}\\x_ {2} = \frac {2-i \sqrt {6}} {2}

Answer:

x_ {1} = \frac {2 + i \sqrt {6}} {2}\\x_ {2} = \frac {2-i \sqrt {6}} {2}

3 0
3 years ago
I need hellpp i need to know what the angle is and what x is​
mestny [16]

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Licemer1 [7]
<span>d = miles from the airport to home. 
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