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dexar [7]
3 years ago
13

(7^2-5)x2 can someone please help me and do it STEP BY STEP please in the easiest way STEP BY STEP this is algebra 1

Mathematics
1 answer:
tigry1 [53]3 years ago
5 0

Answer:

84

Step-by-step explanation:

(7² - 5) × 2

(49 - 5) × 2

(42) × 2

84

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3 years ago
2x² + 4x + 4 + x² + 1 = 180
Tasya [4]

Step-by-step explanation:

2 {x}^{2}  + 4x + 4 +  {x}^{2}  + 1 = 180

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{3x}^{2}  + 25x - 21x - 175 = 0

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= x_{1} =  -  \frac{25}{3} . \:  \:  x_{2} = 7

5 0
3 years ago
which statement is true about the equations –3x 4y = 12 and x1/4 – 1/3y = 1? the system of the equations has exactly one solutio
finlep [7]
If you would like to solve the system of equations, you can do this using the following steps:

-3x + 4y = 12
x * 1/4 - 1/3 * y = 1 ... x * 1/4 = 1 + 1/3 * y ... x = 4 + 4/3 * y
_____________
<span>-3x + 4y = 12
</span>-3 * (4 + 4/3 * y) + 4y = 12
-12 - 4y + 4y = 12
-12 = 12
-12 - 12 = 0
-24 = 0

The correct result would be: <span>the system of the equations has no solution; the two lines are parallel.</span>
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jonny [76]

Answer:

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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