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
Alja [10]
3 years ago
9

Solve each quadratic equation. Show your work 15. x2 + 3x = 10

Mathematics
2 answers:
Margarita [4]3 years ago
5 0
X^2+3x-10=0
(x+5)(x-2)=0
x=-5 or x=2
Hope this helps. 
OLEGan [10]3 years ago
4 0
X² + 3x = 10

Convert to standard form.
x² + 3x - 10 = 0

factor x² = x * x
factor -10 = 5 * -2

(x + 5) (x - 2) = 0
x(x -2) + 5(x-2) = 0
x² - 2x + 5x - 10 = 0
x² + 3x - 10 = 0

x + 5 = 0               x² + 3x = 10
x = -5               -5² + 3(-5) = 10
                              25 - 15 = 10
                                     10 = 10

x - 2 = 0            x² + 3x = 10
x = 2               2² + 3(2) = 10
                             4 + 6 = 10
                                 10 = 10
You might be interested in
Identify two composite numbers that each have 8 as a factor.
Lemur [1.5K]
Two composite numbers that have 8 as a factor are 16 and 24.
7 0
2 years ago
Whats the difference of squares
stepan [7]
An example of the difference of squares would be: a^2-b^2 = (a+b)(a-b)
6 0
2 years ago
Solve the integral:<br><img src="https://tex.z-dn.net/?f=%20%5Cint%20%5C%3A%20%20%7Be%7D%5E%7B%20-%20%20%7Bx%7D%5E%7B2%7D%20%7D%
Sever21 [200]

e^{-x^2} has no antiderivative in terms of elementary functions (polynomials, exponentials, logarithms, trigonometric functions, etc), but there is a special function defined to fit that role called the error function, \mathrm{erf}(x), where

\mathrm{erf}(x)=\displaystyle\frac2{\sqrt\pi}\int_0^xe^{-t^2}\,\mathrm dt

By the fundamental theorem of calculus, we can see that

\dfrac{\mathrm d}{\mathrm dx}\mathrm{erf}(x)=\dfrac2{\sqrt\pi}e^{-x^2}

which means we have

\displaystyle\int e^{-x^2}\,\mathrm dx=\dfrac{\sqrt\pi}2\mathrm{erf}(x)+C

8 0
3 years ago
Functions 1 and 2 are shown:
My name is Ann [436]

Answer:

B

Step-by-step explanation:

Function 2 has a larger maximum.

5 0
2 years ago
Read 2 more answers
I have four factors three of my factors are 12 and 10 what is my fourth factor.
lord [1]
The factor is probobly 8.

4 0
3 years ago
Other questions:
  • Find the value of x in the triangle
    9·2 answers
  • Triangle LMN is located at L(2,3), M(1,2), and N(4,4). The triangle is then transformed using the rule (x+5, y+2) to form the im
    15·1 answer
  • What’s the inverse equation? And how you solved it step by step please!
    8·1 answer
  • What’s the value of the 8 in 281480100
    5·2 answers
  • In 1993, funding for a program increased by 0.79 billion dollars from the funding in 1992. In 1994, the increase was 0.49 billio
    13·1 answer
  • Which two doesn’t belong? PLEASE HELP!! I will give a thanks!!!
    8·1 answer
  • What is the area of the shaded region below?<br> 7 m<br> 30 m<br> 7 m<br> 21 m
    5·1 answer
  • Hey can someone please help, i dont know how to do this
    11·1 answer
  • Thomas has been offered two jobs. The first job pays $995.00 per week. The second job pays $825.00 per week plus 19% commission
    13·1 answer
  • The equation representa Function A and the graph represents Function B
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!