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
cricket20 [7]
3 years ago
11

Factored form of 2x^2+x-3 must show work

Mathematics
1 answer:
frozen [14]3 years ago
4 0

Answer:

(2x+3)(x - 1)

Step-by-step explanation:

Since there is no common number to factor by we must approach this problem differently:

Step 1:

Multiply leading coefficient (2) by the constant term (-3)

2 x -3 = -6

Step two:

Find two numbers that multiply to -6 but add to the middle coefficient (1).

You should find these numbers to be 3 and -2

Step 3:

Replace 1x in the equation with your found numbers

2x^2 - 2x + 3x - 3

Step 4:

Take out the greatest common factor from the first two numbers, and the last two numbers.

For 2x^2 - 2x the greatest common factor would be 2x

For 3x - 3 the greatest common factor would be 3.

Step 5:

Factor out the found common factors

2x(x-1) + 3(x-1)

The values inside the bracket should be the same.

Step 6:

Factor out (x-1)

(x - 1)(2x + 3)

Therefore the factored form is (2x + 3)(x - 1)

You might be interested in
What is the approximate volume of the cone? Use 3.14 for π. radius-16 height-9
Scrat [10]

Answer:

2411.52

Step-by-step explanation:

1/3(3.14*16*16*9) = 2411.52

7 0
3 years ago
Read 2 more answers
9x^2-y^2 in factored form
Keith_Richards [23]

Answer:

(3a-y)(3a+y)

Step-by-step explanation:

This is a difference of squares that has the form and factors to:

a^2x^2-b^2 = (ax-b)(ax+b)

Here take the square root of each term for the factors.

9a^2-y^2 = (3a-y)(3a+y)

8 0
3 years ago
Monica’s lemon cookie recipe calls for 3 cups of sugar. How much much to make 4 1/2 Batches of cookies.
Alex

Answer:  13 & 1/2 cups of sugar

Whole part = 13

Fractional part = 1/2

===================================================

Explanation:

4 & 1/2 = 4 + 1/2 = 4 + 0.5 = 4.5

1 batch = 3 cups sugar

4.5*(1 batch) = 4.5*(3 cups sugar)

4.5 batches = 13.5 cups of sugar

The decimal number 13.5 converts to the mixed number 13 & 1/2 which is the same as writing 13  1/2

8 0
2 years ago
Given that z is a standard normal random variable, find z for each situation.
cestrela7 [59]
You have to use your standard normal table (or calculator) for these. The area under the curve should be 1, a z-value corresponds to the probability and is area to the left of that z.

a. A simple reverse lookup of 0.9750. z=1.96

b. Total area up to z would be 0.5+0.4750, so reverse look up 0.9750 and find z=1.96

c. A simple reverse lookup. z=0.61

d. Area to the left of z would b 1-0.1314, so lookup 0.8686 and find z=1.12

e. A simple reverse lookup. z=0.44

f. Just invert the area: 1-0.33 = 0.67 and reverse lookup: z=0.44
5 0
3 years ago
What is 500,000-437,981 step by step
ElenaW [278]

500,000-437,981=62,019

3 0
3 years ago
Read 2 more answers
Other questions:
  • Margaritas is a very popular restaurant. Occasionally, the restaurant provides lunch and/or dinner for a local charity house. Ea
    14·1 answer
  • Mrs Jenkins is buying pizza for the soccer team after practice. She estimates that each player will eat three eighths if a pizza
    14·1 answer
  • melissa is saving money to buy a game. So far she has saved $30, which is three-fifths of the total cost of the game. How much d
    6·1 answer
  • A laptop costs €550 if eoin and Nessa put there money together they would need another €82 to buy the computer game, how much mo
    6·1 answer
  • Will mark the brainliest <br> Please answer this im desperate :(((
    10·2 answers
  • -does anyone understand Stand this also does anyone else need help
    10·2 answers
  • A package containing 72 plastic cups for $17.99.
    10·1 answer
  • Help me please i will rate you 5 stars
    10·1 answer
  • Jackson bought paint for $11.50 per can. How much would his total cost be if he needed 4 cans of paint?
    6·2 answers
  • Work out 2.9 cos 17° rounded to 2 d.p.
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!