MATHEMATICS HIGH SCHOOL

Factor completely 2x2 − 18

Answers

Answer 1
Answer:

The factorized form of the expression using the difference of two square is  2(x+3)(x-3)

Factorizing functions

Given the following function expressed as 2x^2 - 18

Factor out the GCF

2(x^2 - 9)

This can be written as

2(x^2 - 3^2)

According to the difference of two square, a^2 - b^2 = (a+b)(a-b)

Simplify

2(x^2-3^2) = 2(x+3)(x-3)

This given the factorized expression of 2x^2- 18

Learn more on factoring here: brainly.com/question/24734894

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Answer 2
Answer:

Hi Brainiac

2x² - 18

First you need to factor out the common term which is 2

2(x²-9)

Now factor x²-9

2(x+3)(x-3)


I hope that's help:0

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Shaun is 4 years older than her sister Charmaine. If the sum of their ages is 16 how old is Charmaine?A) 4 years old
B) 6 years old
C) 8 years old
D) 10 years old

Answers

Answer:

The answer is B) 6 years

Step-by-step explanation:

First of all, build an equation. With the given problem, you can come up with:

s + c = 16

In which interprets that both their ages summed up are 16. Secondly,:

s = c + 4

After you will use the typical system of equations to solve. So, plug in the second equation to the first, where s will become c + 4, and the equation is now:

c + 4 + c = 16

And finally, solve for Charmaine's age.

2c + 4 = 16

    -4     -4

-----------------

2c = 12

c = 6

Answer:6 years old

Step-by-step explanation:

What do you notice about the y-coordinates before and after a horizontal stretch? A) The y-coordinates increase after a horizontal stretch. B) The y-coordinates decrease after a horizontal stretch. C) The y-coordinates remain the same after a horizontal stretch. D) The y-coordinates are not affected by a horizontal stretch.

Answers