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aksik [14]
3 years ago
7

Prove the polynomial identity.

Mathematics
1 answer:
aleksandr82 [10.1K]3 years ago
7 0

Explanation:

Since we have given that

(2x+1)^2-2(2x+1)

Now, we have to prove it as

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

Now, start the iterations:

(2x+1)^2-2(2x+1)\\\\=4x^2+1+4x-4x-2\\\\=4x^2+1-2\\\\=4x^2-1\\\\=(2x)^2-1\\\\=(2x+1)(2x-1)

So, first blank will be filled with

4x^2+4x+1

Second blank will be filled with

4x^2-1

Hence proved.

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Solve for xxx.
pav-90 [236]

Then the two solutions of the quadratic equation are 4/5 and 3.

<h3>How to solve the equation?</h3>

Here we want to solve the quadratic equation:

(-5x + 4)*(x - 3) = 0

The two solutions are the values of x for which each parenthesis becomes equal to zero, so the two solutions are given by:

-5x + 4 = 0

x - 3 = 0

If we solve these two equations we get:

x = -4/-5 = 4/5

x = 3

Then the two solutions are 4/5 and 3.

If you want to learn more about quadratic equations:

brainly.com/question/1214333

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4 0
1 year ago
HELP ASAP PLEASE!!!
erastova [34]

Answer:

9/25  .36 and 36 percent

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Simplify the expression:<br> 7s2+9+–2s2
Nikolay [14]

Answer:

5s² + 9

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

<u>Algebra I</u>

  • Terms/Coefficients/Degrees

Step-by-step explanation:

<u>Step 1: Define</u>

7s² + 9 + -2s²

<u>Step 2: Simplify</u>

  1. Rewrite:                               7s² + 9 - 2s²
  2. Combine like terms (s²):     5s² + 9
3 0
2 years ago
Find three consecutive integers whose sum is 60.
alexandr1967 [171]

60 = x + x + 1 + x + 2

60 = 3x + 3

-3

57 = 3x

/3

19 = x

The 3 integers are: 19, 20, and 21.

7 0
3 years ago
Read 2 more answers
1. Consider this dilation in this question for A and B
Readme [11.4K]

Answer:

a) enlargement

b) scale factor is 2

Step-by-step explanation:

As we can see, we went from the block to the red figure

a) Since the red figure is bigger, then what we have is an enlargement of the original figure

b) As we can see, the coordinates of the red is two times the value of the coordinates of the black

So, we can conclude that what we have as a scale factor is 2

3 0
2 years ago
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