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ryzh [129]
3 years ago
11

X²-4 this is the difference of square help please

Mathematics
1 answer:
fenix001 [56]3 years ago
3 0

Answer:

(x - 2)(x + 2)

Step-by-step explanation:

If this is a difference of squares, it factors like this.

(x - 2)(x + 2)

The general rule is x^2 - a^2 factors into sqrt(x^2) +/- sqrt(a^2)

That always produces 2 factors: (x + a)(x - a)

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Hello!! the answer is 3xy
8 0
3 years ago
Help me find the remainder please
Dominik [7]

This result follows from the remainder theorem: the remainder upon dividing f(x) by x - c is exactly f(c).

So if

f(x)=5x^5+4x-3

then the remainder upon dividing this by x - 2 is f(2), or

f(2)=5\cdot2^5+4\cdot2-3 = \boxed{165}

4 0
3 years ago
Please help!!!!!!!!!!
blsea [12.9K]

Answer:

Step-by-step explanation:

a)  x  =  1.786 & -1.120

Explanation:

Turning points are points where the derivative equals zero. Solving the derivative for the values of X will give the answer to part a.

The derivative of this equation x^3 =x^2-6x[/t[tex]  is [tex]3x^2+2x-6.

Solving the equation 3x^2+2x-6=0 using the quadratic formula we get  1.786 & -1.120

b)  x = -3, x=0 and  x=2

Explanation:

The solution to this equation are the points where the graph intersects with the x axis. Looking at the graph we can see that these points are -3 , 0 and 2

3 0
3 years ago
Read 2 more answers
A scientist begins with 50 milligrams of a radioactive substance that decays exponentially. After 40 hours, 25 mg of the substan
saveliy_v [14]

Based on the information given, the number of milligrams that will remain after 59 hours will be 13.125 milligrams.

Since after 40 hours, 25 mg of the substance has been removed, therefore, the rate per hour will be:

= 25/40 = 0.625.

The amount that will be removed in 59 hours will be:

= 59 × 0.625 = 36.875

The number of milligrams that will remain will be:

= 50 - 36.875 = 13.125 milligrams

Read related link on:

brainly.com/question/25776703

8 0
2 years ago
4. Simplify 9c + (8 + 3c). Justify each step. ​
Mars2501 [29]

Answer:

Step-by-step explanation:

4 0
3 years ago
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