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
Classify the polynomial.<br><br> 3r^5-2r^2+5r
ella [17]
Answer: 5th degree trinomial

The degree is 5 because its the largest exponent of the single variable polynomial.

It's a trinomial because there are 3 terms. The terms are separated by a plus or a minus.
7 0
3 years ago
Hey guys i need this fast its due in 15 minutes and please show step by step process
dolphi86 [110]
You can use a calculator for this if your teacher lets you to make it easier
6 0
3 years ago
Plz plz, help I don't understand 24 points !!! Will mark brainiest for correct answers only quick!!!
olya-2409 [2.1K]
The triangle is kinda square so multiply and you should get 24
6 0
3 years ago
If 90 is 80% of a value, what is that value?
Anna71 [15]
So 90 is 4/5 of a number.

4/5n=90

4n=450

n=450/4

n=112.5
7 0
4 years ago
Read 2 more answers
By how many grams is 1.3 kg heavier than 700g
omeli [17]
A kilogram is equal to a thousand grams, so 1.3 kg is 1300 grams.

1300 - 700 = 600.
7 0
4 years ago
Other questions:
  • Bree made three identical birthday hats out of construction paper. Each was in the shape of a cone. The diameter of each hat was
    10·1 answer
  • How to solve -x+4=-2x-6
    11·2 answers
  • How long does it take sound with an average speed of 330 m/s to travel 2475 meters?
    12·1 answer
  • Find the value of X 150 4X-5
    7·1 answer
  • Solve for X. I’m bad at geometry please help me
    11·1 answer
  • Simplify the following algebraic expression 3/4 (1/2x - 12) + 4/5
    8·1 answer
  • I'll give Brainliest!!!<br> What is 5 1/2 divided by 5 1/3 equal?
    11·1 answer
  • Find the standard deviation of the data set shown. Round your answer to the nearest tenth.
    9·2 answers
  • Cam is 3 years older than Lara, If there combined age is 63, determine their ages by solving simultaneous elmination.
    11·2 answers
  • Choose and appropriate data display for the situation. Select all that apply.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!