<img src="https://tex.z-dn.net/?f=%20%5Csqrt%7Bx%2B10%7D%3D%20x-2%20" id="TexFormula1" title=" \sqrt{x+10}= x-2 " alt=" \sqrt{x+

All categories

professor190 [17]

3 years ago

10}= x-2 " align="absmiddle" class="latex-formula">

Help? Has to be factored.

Mathematics

1 answer:

frez [133]3 years ago

3 0

Square both sides
x+10=x^2-4x+4
subtract x from both sides
10=x^2-5x+4
subtract 10 from both sides
0=x^2-3x-6
factor
what 2 numbers multiply to get -6 and add to get -5
the numbers are -6 and 1
so
(x-6)(x+1)=0
if xy=0 then assume x and y=0
so
x-6=0
x=6
x+1=0
x=-1

x=6 and/or-1

You might be interested in

What does 7/18 estimate to 0,1/2,1

DiKsa [7]

Answer: 11/2

Step-by-step explanation:

7 0

3 years ago

Find (3.3 × 10^4) + (1.9 × 10^5)

scoundrel [369]

Answer:

$2.23 \times 10^{5}$

Step-by-step explanation:

We have to find the sum of two numbers following the steps as described in the question.

The question is in the form of fill in the blanks.

Now, the given sum is $(3.3 \times 10^{4} )+(1.9 \times 10^{5} )$

= $(3.3 \times 10^{4} )+(19 \times 10^{4} )$

= $(3.3+19) \times 10^{4}$

= $22.3 \times 10^{4}$

= $2.23 \times 10^{5}$ (Answer)

5 0

3 years ago

Brainiest if correct

Mademuasel [1]

Answer:one solution

Step-by-step explanation:

6 0

3 years ago

Tamika’s math test scores (out of 30) are 25, 28, 26, 25, 8, 29, 28, 24, 23.

I am Lyosha [343]

Answers:

A.) 8 is the outlier in the set. It is the only number that doesn't match with the others. It is the furthest from the median of the numbers.

B.) The outlier could represent false information. It could greatly drop the number of the mean, or the average, range of the scores.

C.) The mean is affected more. The mean of a set of numbers is the average of the set. The median just locates the middle-most number. The median would not always give an accurate representation of the average of the set like the mean would.

4 0

3 years ago

HELP HELP--Given an equilateral triangle, what kind of symmetry will the figure have: point, line, plane. (Select all that apply

Salsk061 [2.6K]

Answer:

line and point

Step-by-step explanation:

a triangle can be equally split in half, as well as with a point in the middle

3 0

3 years ago

Read 2 more answers