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
liq [111]
4 years ago
8

Completing the square. a^2+2a-3=0

Mathematics
1 answer:
oksian1 [2.3K]4 years ago
8 0

a^2 + 2a - 3 = 0

a^2 + 2a = 3

a^2 + 2a + 1 = 3 + 1 (I added a 1 to both sides)

a^2 + 2a + 1= 4

(a + 1)^2 = 4

a = -3, 1

You might be interested in
Factor by grouping 5x^3+6x^2+25x+30
Digiron [165]

Answer:

(5x + 6) (x² + 5)

Step-by-step explanation:

5x³ + 6x² + 25x + 30

= x² (5x + 6) + 25x + 30    -- Group 5x³ and 6x²

= x² (5x + 6) + 5 (5x + 6)    -- Group 25x and 30

= (5x + 6) (x² + 5)  -- Both terms have a common factor of 5x + 6

5 0
3 years ago
Which graph shows a system with an infinite number of solutions?
Rom4ik [11]
Graph b I’m pretty sure cause there parallel to each other and will keep stretching
4 0
3 years ago
HELP PLS!! Which table represents The function y=4x-3?
jeka57 [31]
The third one should be your answer
5 0
3 years ago
Which step would not be a possible first step for solving the following equation algebraically?
Novosadov [1.4K]
D is the only not possible first step
4 0
3 years ago
Please help on the last question im gonna do 40 points
klasskru [66]
I believe number 5 is c and number 6 is f
8 0
3 years ago
Other questions:
  • The width of the rectangle is five feet less than the length. If the perimeter of the rectangle is 34 feet find both dimensions
    7·1 answer
  • NEED ANSWER ASAP<br> MARKING BRAINLIEST
    15·1 answer
  • A business owner collected data on the people working for her company. She determined the average number of minutes each employe
    11·1 answer
  • bryson is laying down sod in his yard to grow a new lawn each piece of sod is by 1 foot by 1 foot square how many pieces of sod
    7·1 answer
  • Which sources are reliable? Check all that apply. a National Oceanic and Atmospheric Administration article discussing Pacific b
    5·2 answers
  • A company runs food service concessions for sporting events throughout the country. Their marketing research department chose a
    9·1 answer
  • From any one vertex of a 4-sided polygon (a quadrilateral), 1 diagonal can be drawn. From any one vertex of a 5-sided polygon (a
    8·1 answer
  • Need math help for this.​
    5·2 answers
  • An adult short-eared owl weighed 1/2 pound. A baby short-eared owl weighed 2/9 pound. What was the total weight of the two owls?
    9·1 answer
  • There are boys and girls in a class in the ratio 1:9<br> What fraction of the pupils are girls?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!