All categories

2 years ago

(2x+1)(x^2+8x-3) help standard form

Mathematics

1 answer:

trapecia [35]2 years ago

6 0

Answer:

$2x^3+17x^2+2x-3$

Step-by-step explanation:

$\left(2x+1\right)\left(x^2+8x-3\right)\\=2xx^2+2x\cdot \:8x+2x\left(-3\right)+1\cdot \:x^2+1\cdot \:8x+1\cdot \left(-3\right)\\=2x^3+17x^2+2x-3$

In this equation, the variables were isolated to simplify the problem, following the order of operations. Negative-three either became an exponent or positive integer, 3, subtracted by a byproduct of the previous equation.

You might be interested in

Solve for x: (x − 2) = 4x. (1 point)

Georgia [21]

Steps:

(x-2)=4x

Pretend that there is a one in front of x-2

1(x-2)=4x

Multiply the bracket by 1

x-2=4x

Move x to the other side .Whenever you move a number or letter the sign changes.

x-x-2=4x-x

-2=3x

Divide by 3 for -2 and 3

-2/3=3/3 x

x=-2/3

Check answer by using substitution method

(-2/3-2)=4(-2/3)

(-2/3-6/3)=-8/3

-8/3=-8/3

Answer is -2/3

3 0

3 years ago

Help me and I'll help back

madreJ [45]

The answer is 2.72. Hope that worke

4 0

4 years ago

I need help algebra

asambeis [7]

Answer:

A. the slope value is 1/4

B. 0

C. y = 1/4x

Step-by-step explanation:

A: the slope can be calculated with the formula

$m = \frac{rise}{run} = \frac{y2 - y1}{x2 - x1}$

m is the slope

(x1, y1) is your first coordinate point (any point will work)

(x2, y2) is your second coordinate point (any point will work)

Plug in your values, in this case I chose (0,0) and (4,1) as the two coordinates:

$m = \frac{y2 - y1}{x2 - x1} = \frac{1 - 0}{4 - 0} = \frac{1}{4}$

B: the y-intercept is the y-coordinate of where the graph touches the y-axis and in this case the coordinate is (0,0) where the y coordinate is 0.

the equation of the graph is y = mx + b.

m is the slope = 1/4

b is the y-intercept = 0

Therefore the equation is y = 1/4x

6 0

3 years ago

Kevin wants to earn more than $58 trimming trees. He charges S6 per hour and pays $8 in equipment fees. What are the possible nu

jonny [76]

Answer:

58 ≤ 6r - 6

64 ≤ 6r

10.3 ≤ r

Step-by-step explanation:

6 0

3 years ago

PLZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZSelect all of the choices that are equal to (-5) - (-12).

valentina_108 [34]

Answer:

2 and 3

Step-by-step explanation:

subtract (-5) - (-12) and get 7 plus if you see a - that is finding the difference. therefore your answers are 2 and 3. Hope this helps! ^w^

4 0

3 years ago

(2x+1)(x^2+8x-3) help standard form​

(2x+1)(x^2+8x-3) help standard form