Factor Completely: 2x2 − 18

2 answers:

3 0

To factor the given function, find a term that is divisible by both terms. For this problem, the factor would be 2, since 2x^2 and -18 are both divisible by 2.

2(x^2 - 9)

You could further factor out x^2 - 9 because it is factorable by (x - 3) and (x + 3). Thus, it would be

2(x -3)(x+3)

Darya [45]2 years ago

3 0

Answer:

The correct answer you are looking for is answer C

Step-by-step explanation:

2(x + 3)(x − 3)

if we factor both polynomials and if we factor the exponents, take away both sides to get 2x^2 then multiply the terms and simplify

You might be interested in

What is the solution to this equation 8 - 2x + 6x = 24

san4es73 [151]

x = 4

First you combine like terms:

8 + 4x = 24

Then solve:

4x = 24 - 8

4x = 16

x = 16/4

x = 4

4 0

2 years ago

Read 2 more answers

Help please i dont know this thank you<33

jok3333 [9.3K]

Answer:

Step-by-step explanation:

Put the value where the variable is and do the arithmetic. It can save some steps to simplify the expression first.

35 -c³ +8 = 43 -c³

c = 1

43 - 1³ = 43 -1 = 42

c = 2

43 - 2³ = 43 -8 = 35

c = 3

43 -3³ = 43 -27 = 16

The values that go in the blanks are 42, 35, 16.

_____

Additional comment

It does not take long to learn how to use a spreadsheet for evaluating the same formula with a number of different values of the variable(s). Graphing calculators can do this, too. It is always appropriate to use the right tool for the job.

Familiarity with multiplication and addition facts is a very good place to start. It is also useful to memorize the squares and cubes of small integers. The latter are needed here.