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2 years ago

Just need the blank answers

Mathematics

1 answer:

Kamila [148]2 years ago

8 0

Answer:

(x+1)(x-1) and x = -1, 1, 2

Step-by-step explanation:

x^2 - 1 factors to (x+1)(x-1)

x+1 = 0; x = -1

x-1 = 0; x = 1

x-2 = 0; x = 2

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1 year ago

Which matrix represents the system of equations shown below? 2x-y=-6 and x-6y=13

dezoksy [38]

Answer: D

<u>Step-by-step explanation:</u>

The first matrix contains the coefficients of the x- and y- values for both equations (top row is the top equation and the bottom row is the bottom equation. The second matrix contains what each equation is equal to.

$\begin{array}{c}2x-y\\x-6y\end{array}\qquad \rightarrow \qquad \left[\begin{array}{cc}2&-1\\1&-6\end{array}\right] \\\\\\\begin{array}{c}-6\\13\end{array}\qquad \rightarrow \qquad \left[\begin{array}{c}-6\\13\end{array}\right]$

The product will result in the solution for the x- and y-values of the system.

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3 years ago

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olya-2409 [2.1K]

Answer:

Answer is A. 36x-11y

Step-by-step explanation:

34x-12x+14x-18y+7y

=22x+14x-18y+7y

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6 0

3 years ago

Given 2x - y = 6, solve for y

Naddik [55]

Solve for y ans

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3 years ago

Read 2 more answers

8x - 2 + 4x + 10 + 3x + 5 = 180

erik [133]

Answer: $11\frac{2}{15}$

Step-by-step explanation:

What you are trying to do is isolate the variable x. For you to do that you have to first simplify the left side of the equation and then you solve for x.

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3 years ago