All categories

2 years ago

How I solve x*x Please help 1) 2x 2) x^2 3) x(x+2) 4) x+2

1 answer:

8 0

It would be 2) x^2.

In this question, if you are having trouble, we could replace x with a number.

For example, x=5. Then, it would be 5 × 5 or 5^2.

You might be interested in

Add and subtract the rational expressions. 7x+5/x-1 -(8x1/x-1+2x-4/x-1) Which statements are true about the process for adding a

anzhelika [568]

Answer:

2. The denominator of the fully simplified expression will be x – 1.

4. The numerator of the fully simplified expression will be –3x + 10.

Step-by-step explanation:

Given the rational expression

$\dfrac{7x+5}{x-1} -(\dfrac{8x-1}{x-1} +\dfrac{2x-4}{x-1} )$

Let us first simplify before making our deductions.

Opening the brackets

$\dfrac{7x+5}{x-1} -(\dfrac{8x-1}{x-1} +\dfrac{2x-4}{x-1} )=\dfrac{7x+5}{x-1} -\dfrac{8x-1}{x-1} -\dfrac{2x-4}{x-1}$

Taking LCM

$=\dfrac{7x+5-(8x-1)-(2x-4)}{x-1}$

Opening the brackets and simplifying

$=\dfrac{7x+5-8x+1-2x+4}{x-1}\\\text{Collecting like terms in the numerator}\\=\dfrac{7x-8x-2x+5+1+4}{x-1}\\=\dfrac{-3x+10}{x-1}$

The following statements are therefore true:

2. The denominator of the fully simplified expression will be x – 1.

4. The numerator of the fully simplified expression will be –3x + 10.

5 0

2 years ago

What is the equation of the axis of symmetry for this function? H(x) = -X2 + 10x - 11 x = -5 0 x= -10 x = 5 x = 10

siniylev [52]

Given:

The equation of a quadratic function is:

$H(x)=-x^2+10x-11$

To find:

The equation of the axis of symmetry for the given function.

Solution:

If a quadratic function is $f(x)=ax^2+bx+c$ , then the equation of the axis of symmetry is:

$x=-\dfrac{b}{2a}$ ...(i)

We have,

$H(x)=-x^2+10x-11$

Here, $a=-1,b=10,c=-11$ . So, the equation of axis of symmetry by using (i), is

$x=-\dfrac{10}{2(-1)}$

$x=-\dfrac{10}{-2}$

$x=5$

Therefore, the correct option is C.

8 0

2 years ago

In a lab experiment, 5300 bacteria are placed in a petri dish. The conditions are such that the number of bacteria is able to do

Olegator [25]

Answer:

6867+8879=56476.7978

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

My family went out to dinner. Our bill came to $115. We want to tip the waiter 20%. What is the total amount we should pay just

MariettaO [177]

The answer is 23 because 20% of 115 is 23

4 0

3 years ago

Which of the following statements is true for the figures shown?

DochEvi [55]

Answer is B I think that’s correct

5 0

2 years ago