1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
cestrela7 [59]
2 years ago
7

Please solve with explanation 8 points

Mathematics
1 answer:
11111nata11111 [884]2 years ago
3 0

Answer:

See below.

Step-by-step explanation:

Given :-

x² + bx + c = 0 if x₁ + x₂ = -b and x₁x₂ = c

Solving :-

a) x₁ = 1/2 and x₂ = -3/4

=> x² + -(1/2 + -3/4)x + 1/2(-3/4)

=> x² + -(-1/4)x + (-3/8)

=> x² + 1/4x - 3/8

=> 8x² + 2x - 3 = 0

b) x₁ = 1 + √5 and x₂ = 1 - √5

=> x² + -(1 + √5 + 1 - √5)x + (1 + √5)(1 - √5)

=> x² - 2x + 1 - 5

=> x² - 2x - 4 = 0

You might be interested in
I WILL MARK FIRST BRAINLIEST! I leave a thanks too! 0 = -2x^2 - 7x -1 Solve using quadratic formula PLEASEEEEEE I need the answe
slamgirl [31]

Here,

2x^2 + 7x + 1 = 0

given,

a = 2

b = 7

and c = 1

From formula,

x = (-b+-√b^2-4ac) / 2a.

We get,

x = -7/4 ± √(41)/4 Ans.

4 0
3 years ago
URGENT HELP PLS 20 POINTS
horrorfan [7]

Answer:

I think i knew it but I forget

sorry!

Step-by-step explanation:

7 0
2 years ago
Point V is on line segment UW, given VW = x + 7, UW = 3x - 9, and UV = 8, determine the numerical length of UW
krek1111 [17]

Answer:

The numerical length of UW is 27

Step-by-step explanation:

8 0
3 years ago
The weight of mr nazeer is 7 times that of his son. What's the ratio of their weights?
Mekhanik [1.2K]

Answer:

<h3>7:1</h3>

Step-by-step explanation:

Let the weight of mr nazeer be x

Let the weight of his son be y

If the weight of mr nazeer is 7 times that of his son, then x = 7y

To get the ratio of their weight:

Ratio = weight of father/weight of son

Ratio = 7y/y

Ratio = 7/1

Ratio = 7:1

Hence the ratio of their weights is 7:1

3 0
3 years ago
HELP ME SOLVE THIS PROBLEM PLEASE! :)
lukranit [14]
The answer would be the first option :
4/3r (3x)^3.

Hope this helps !

Photon
3 0
3 years ago
Read 2 more answers
Other questions:
  • After a 90% reduction, you purchase a new soft drink machine on sale for 56$. What was the original price of the soft drink mach
    9·1 answer
  • How many terms are there in the expression 2x - 5y + 3 + x? <br> 3<br> 4<br> 5<br> 6
    14·2 answers
  • Help mee please i want to pass
    8·2 answers
  • Find the area (PLEASE HELP DUE SOON!!! thanks xo)
    7·2 answers
  • Write 14 hundred thousands, 19 ten thousands, 17 thousands, 7 hundreds 15 ones
    8·1 answer
  • WORTH 15 POINTS<br> 4 1/5 x 2 1/2 <br> (please don't add it as a decimal)
    14·1 answer
  • What is the domain of<br> (9c+160)/5
    6·1 answer
  • Answer thanks, show how you got the answer.
    10·1 answer
  • The Corner Bakery makes many cupcakes each day.On Tuesday 1/4th of the cupcakes were chocolate and 5/8 of the cupcakes were vani
    5·1 answer
  • This is the function that models a boulder being pushed of a cliff. Find the height after 1.5 seconds.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!