All categories

3 years ago

What are the zeros of the function f(x) = x^2 + 5x + 5 written in simplest radical form?

Mathematics

1 answer:

Klio2033 [76]3 years ago

7 0

Answer:

2x = -5 +/- root 5 (opt 3)

Step-by-step explanation:

0 = 4f(x)

= 4(x^2 + 5x + 5)

= 4x^2 + 20x + 20

= (2x)^2 + 2*2x+5 + 25 - 5

= (2x + 5)^2 - (root 5)^2

= ((2x+5) - 5) ((2x + 5) + 5)

= (2x + 5 - 5) (2x + 5 - 5)

Therefore, 2x = -5 +/- root 5

Hope u understand.

Please mark as the brainliest

Thank You

You might be interested in

Find X, last two anwsers are 4 and 8

IgorLugansk [536]

Answer:

Step-by-step explanation:

8X+4=360-108-80-96

8X+4=76

8X=76-4

8X=72

X=72/8

X=9

8 0

2 years ago

Can someone help me with my math ?

shepuryov [24]

Easy! Just substitute.

That will be 3 + 8 * 4

Remember PEMDAS? Multiplication comes before addition, so FIRT MULTIPLY.

3+ 32= 35
Final answer= 35

3 0

3 years ago

What is 2/3 multiplied by 3/4 simplified? I need step by step to get answer.

Masteriza [31]

You start with the top number of each fraction and multiply them. So 2x3=6. Next you take the bottom number and multiply. So 3x4=12. That would give you a fraction of 6/12. 6 is half of 12 so 6/12 simplified is equal to 1/2. Hope this helps!

3 0

3 years ago

What is the equation of the line perpendicular to the line x = 6 that passes through the point (4,7)?

MrMuchimi

X=6 is a line parallel at x=6 to the y-axis

the line perpendicular to line x is parallel to x-axis at y= 7, hence this new line has a function y=7

3 0

3 years ago

Find the value of x because this is really hard for me and I don't get it.

Doss [256]

Answer: $x=21$

Step-by-step explanation:

For this exercise it is important to remember that, by definition, the sum of the Exterior angles of a polygon is 360 degrees.

Knowing this, you can write the following equation:

$(4x-1)+3x+(5x+4)+105=360$

Now, you must solve for "x" in order to find its value. The steps are:

- Add the like terms:

$12x+108=360$

- Subtract 108 from both sides of the equation:

$12x+108-108=360-108\\\\12x=252$

- Divide both sides by 12:

$\frac{12x}{12}=\frac{252}{12}\\\\x=21$

8 0

3 years ago