3 years ago

Factor completely 9x2 − 25.

1 answer:

6 0

This is difference of 2 squares.

Take the square root of 9 and 25 

(3x + 5) (3x - 5)

You might be interested in

Rina8888 [55]

$6x(x+4)=0 \\
6x=0 \ \lor \ x+4=0 \\
x=0 \ \lor \ x=-4 \\
\boxed{x=0 \hbox{ or } x=-4}$

4 0

3 years ago

Troyanec [42]

Answer:

This is verry easy! Is 105.56,do u need expabation?

7 0

3 years ago

finlep [7]

Answer:rational

Step-by-step explanation:

7 0

3 years ago

Advocard [28]

Answer:

161700 ways.

Step-by-step explanation:

The order in which the transistors are chosen is not important. This means that we use the combinations formula to solve this question.

Combinations formula:

$C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

In this question:

3 transistors from a set of 100. So

$C_{100,3} = \frac{100!}{3!(100-3)!} = 161700$

So 161700 ways.

6 0

3 years ago

Andrei [34K]

Answer:

Is it possible for you to explain it a little more?

Step-by-step explanation:

6 0

3 years ago