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Andrew [12]
3 years ago
13

Factor completely 3x2 − x − 4.

Mathematics
1 answer:
kvv77 [185]3 years ago
4 0

Answer:

(3x-4)(x + 1)

Step-by-step explanation:

first, split the middle term,

3x^2-x-4

= 3x^2 + 3x - 4x - 4

= 3x( x+ 1) - 4( x + 1)

= (3x-4)(x + 1)

plz mark as brainliest

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Derick solves the problem below.
Gala2k [10]

As it is proved that the equation has no solution, Derick is correct

Step-by-step explanation:

Given

-3(4n + 2) = -4n + -2 (4n - 6)

We have to solve the equation in order to check if Derick was solved the equation correctly or not.

So,

Applying distributive property first

-12n -6 = -4n -8n +12\\-12n-6 = -12n+12\\-12n+12n-6 = 12\\-6 = 12

As the variable is already cancelled in the equation there is no unique solution.

In order for an equation to have infinite solutions the constant on both sides of equation should be same which is not the case in the given equation

So,

As it is proved that the equation has no solution, Derick is correct

Keywords: Linear equations, variables

Learn more about linear equations at:

  • brainly.com/question/5510873
  • brainly.com/question/5527192

#LearnwithBrainly

3 0
3 years ago
Which logarithmic equation is equivalent to this exponential equation? <br><br> 12=5^x
Brut [27]

Given:

The equation is:

12=5^x

To find:

The logarithmic equation that is equivalent to the given exponential equation.

Solution:

According to the property of logarithm:

a=b^x\Leftrightarrow \log_b a=x

We have,

12=5^x

Here, a=12,b=5. By using the above property of logarithm, we get

\log_{5}12=x

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Therefore, the correct option is C.

5 0
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Half of the sum of x and 2
natka813 [3]

Answer:

1/2+2x or 1/2+2+x

Step-by-step explanation:

i don't know but this what i think i hope this helps

7 0
4 years ago
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masha68 [24]

Answer:

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Step-by-step explanation:

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mezya [45]

Answer:

In order to find out the tangent value of 45 degrees, we need to divide the opposite side to the angle by the adjacent side. Since both the opposite and adjacent sides of this triangle are the same, we can see that tan(45) is equal to 1.

Step-by-step explanation:

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