Factor: 3.x2 + 7x + 2

Mathematics

1 answer:

iren [92.7K]3 years ago

5 0

Answer:

x= -1/3 and -2

I have made it in above picture

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(-7)^7 x (-7)^3 as a power

Georgia [21]

Answer:

7^10

When multiplying exponents keep the number the same and add the power

FOr example in 9^3 x 9^7 we keep 9 the same whilst adding the exponents

9^10 would be the answer for the example problem

Step-by-step explanation:

3 0

3 years ago

Assume that x equals x (t )and y equals y (t ). Let y equals x cubed plus 4 and StartFraction dx Over dt EndFraction =2 when xe

nika2105 [10]

Answer:dy/dt(x=3)=54

Step-by-step explanation:

We know that we can write:

$\frac{dy}{dt}=\frac{dy}{dx} *\frac{dx}{dt}$

and so evaluate it as a product of functions, that is for a given value of x or t, we get that

$\frac{dy}{dt}(s)=\frac{dy}{dx} (s) * \frac{dx}{dt}(s)$ .

Now we are told that:

$1. x=x(t),\ 2.y=x^3+4,\ \frac{dx}{dt} =2,\ for \ x=3,$

whenever it happens, this means the influence of t is hidden, and we only consider the result, that is, how much is x when the derivative has the value of 2, we are not concerned for what value of t it happens, since we get all the necessary information beforehand.

Now we need to calculate

$\frac{dy}{dx}=3x^2 \rightarrow \frac{dy}{dx}(3)=3(3)^2=27$ .