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SVEN [57.7K]
3 years ago
8

Factorise: x³ + 32x + 20.​

Mathematics
1 answer:
LenKa [72]3 years ago
7 0

Answer:

cant be factored

Step-by-step explanation:

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Can someone help me please i am so confused and its due today!!
deff fn [24]

Answer:

x is 20

Step-by-step explanation:

7 0
3 years ago
Find the discriminant of the equation. x2 + 3x - 4 = 0
ivann1987 [24]

Please use " ^ " to indicate exponentiation: x^2 + 3x - 4 = 0

Here, a = 1, b = 3 and c = -4.

The formula for the discriminant is b^2 - 4(a)(c).

Substituting the given values of a, b and c, we get:

(3)^2 - 4(1)(-4)

Evaluating this, we get 9 + 16 = 25.

The discriminant is 25.

-3 plus or minus √25

Taking this further, x = ------------------------------------

2

-3 plus or minus 5

or: x = -------------------------------- => {-4, 1} (solutions)

2

5 0
3 years ago
Read 2 more answers
28/36 reduced fraction
ratelena [41]
28/4 = 7,
36/4 = 9,
Place the 7 over the 9 and you get 7/9!
6 0
3 years ago
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Use the method of cylindrical shells to find the volume V generated by rotating the region bounded by the curves about the given
Fed [463]
See attachment for one such shell. The volume is given by the sum of infinitely many thin shells like this, each with radius x and height determined by the vertical distance between the upper blue curve and the lower orange curve for any given x, i.e. 8e^x-8e^{-x}.

The volume is then

2\pi\displaystyle\int_0^1x\left(8e^x-8e^{-x}\right)\,\mathrm dx=16\pi\int xe^x(e^{2x}-1)\,\mathrm dx=\dfrac{32\pi}9(e^3-4)\approx179.677
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3 years ago
Write the linear equation in slope-intercept form​
dolphi86 [110]

The y intercept is 0, and the slope is 5x.

Equation: y = 5x +0.

7 0
3 years ago
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