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dlinn [17]
3 years ago
15

Factor completly. do not answer if you dont know it please!! ill give u brainliest

Mathematics
2 answers:
mariarad [96]3 years ago
3 0

Answer:

(2x+1)(2x−1)

Step-by-step explanation:

4x^2−1

(2x+1)(2x−1)

Alinara [238K]3 years ago
3 0

Answer:

Since both terms are perfect squares, factor using the difference of squares formula, a-b with the little 2 ontop=(a+b) where a= 2x and b= 1. (2x+1)(2x-1)

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The sum of 4 twelves and 7 sixteens
dolphi86 [110]

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8 0
3 years ago
What is the answer for -12+x/11=-3
dem82 [27]

Answer:

x = 99

Step-by-step explanation:

<u>Step 1:  Solve for x</u>

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3 0
3 years ago
Use Cramer's rule to find the solution to the following system of linear equations.
slavikrds [6]

Answer:

x = 53

y = 30

Step-by-step explanation:

Step(I):-

Given equations are

x -2y =-7 ...(I)

5x-9y =-5 ..(ii)

The matrix form  AX = B

                    \left[\begin{array}{ccc}1&-2\\ 5  & -9\\\end{array}\right] \left[\begin{array}{ccc}x\\y\\\end{array}\right] = \left[\begin{array}{ccc}-7\\-5\\\end{array}\right]

The determinant

= \left|\begin{array}{ccc}1&-2\\5&-9\\\end{array}\right| = -9+10 =1

By using Cramer's Rule

Δ₁ =      \left[\begin{array}{ccc}-7&-2\\\\-5&-9\end{array}\right]



The determinant is     Δ₁ = -9 X -7 - (10 ) = 53

x = Δ₁ / Δ

x = 53

The determinant

Δ₂ =



Δ₂ = -5 +35

     

 

y = Δ₂/Δ =  30

     

5 0
2 years ago
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