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
Serhud [2]
3 years ago
13

Use factoring to solve x^2-2x-35=0

Mathematics
2 answers:
deff fn [24]3 years ago
8 0

Answer:

The solution set of the quadratic equation is

x = {7, -5}

Step-by-step explanation:

Given the quadratic equation

$ x^2 - 2x -35 = 0 $

We need to factor this equation

So you need two numbers such that

a + b = -2

and

a×b = -35

How about -7 and 5?

-7 + 5 = -2

-2 = -2

and

-7×5 = -35

-35 = -35

(x - 7)(x + 5) = 0

(x - 7) = 0

x = 7

and

(x + 5) = 0

x = -5

Therefore, the solution set of the quadratic equation is

x = {7, -5}

Verification:

Plug 7 into the quadratic equation

x^2 - 2x -35 = 0 \\\\(7)^2 - 2(7) -35 = 0 \\\\49 - 14 - 35 = 0 \\\\49 - 49 = 0\\\\0 = 0

Plug -5 into the quadratic equation

x^2 - 2x -35 = 0 \\\\(-5)^2 - 2(-5) -35 = 0 \\\\25 + 10 - 35 = 0 \\\\35 - 35 = 0\\\\0 = 0

mrs_skeptik [129]3 years ago
7 0

Answer:

I'm sorry I don't have an answer but for all future math work you should download photomath on your phone it's rly good

You might be interested in
You order items from a menu that total $10.75. your bill comes to $11.66, including tax. what is the percent of the increase (ta
Masja [62]

Answer:

Leonardo emiliano Castañeda angeles

3 0
3 years ago
Read 2 more answers
You pick a card at random.<br> What is P(even or prime)?<br><br> Write your answer as a percentage.
Nataly [62]
The answer is 50 percent because there is a 2/4 x 100 chance
6 0
2 years ago
Pls help me guys!<br> Thanks :D I'm really stuck
Katarina [22]
A) <
You are welcome and if someone else answers, mark me brainliest
5 0
3 years ago
Read 2 more answers
What is the largest integer n such that (n^2-38) / (n +1) is an integer?
Phantasy [73]

Answer:

a. 36

Step-by-step explanation:

for (n^2-38)/(n+1) to be an integer, n+1 must completely divide, n^2-38.

we check with the options

option a n=36 sutisfies the above condition.

(36^2-38)/36+1 = 1258/37= 34 , which is an integer. Therefore, largest integer would be 36

6 0
3 years ago
A cone has a volume of 60pie cubic feet. If the radius is 2 feet what is the height of the cone
CaHeK987 [17]

Answer:h=60×2

=120

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • A number minus 11 is 12
    11·1 answer
  • the length of a cube is x centimeters. If x is an integer why can't the volume of the cube equal 15 cm cubed
    12·1 answer
  • The side length of a cube is √7 cm. What is the volume of the cube? (Volume = length times width times height)
    15·2 answers
  • Louis wants to carpet the rectangular floor of his basement. The basement has an area of 864 sq. Feet. The width of the basement
    12·1 answer
  • Find an<br> angle 0 coterminal to 701°, where 0°
    11·1 answer
  • Susan has a piggy bank with 28 coins in it, all dimes and quarters. She has been collecting state quarters and so far has no rep
    10·1 answer
  • cody spent 3 hours and 5 minutes looking for his missing cat if he finally found it at 7:35 what time was it when he originally
    12·1 answer
  • Simplify 7 + (−3). Please hurry<br><br> -10<br> -4<br> 4<br> 10
    7·2 answers
  • 7.) The online book is $29.00 but the tax and shipping is another 25%. What will it cost me with the tax and shipping?
    5·1 answer
  • −3/2⋅4⋅1/2(10−8) hurry
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!