2 years ago

Multiply: (x + 3)(x-4)

Mathematics

1 answer:

Ratling [72]2 years ago

5 0

Answer:

X^2-x-12

Step-by-step explanation:

FOIL

First, Outside, Inside, Last

First: X*X=X^2

Outside: x*-4=-4x

Inside: x*3=3x

Last:3*-4=-12

All together: X^2-4x+3x-12

Simplify: X^2-x-12

You might be interested in

When the new computer lab opened there were 18 computers.by the end of firdt week there were 25 computers. Find the percent of c

aliina [53]

The number of computers increased by 38.9%

Step-by-step explanation:

Number of computers at start of week = Old value = 18

Number of computers by end of week = New value = 25

Change = New value - Old value

Change = 25-18 = +7

The positive sign indicates the increase.

Increase percent = $\frac{Change}{Old\ value}*100$

$Increase\ percent=\frac{7}{18}*100\\\\Increase\ percent=\frac{700}{18}\\\\Increase\ percent= 38.88\%$

Rounding off to nearest tenth

Increase percent = 38.9%

The number of computers increased by 38.9%

Keywords: difference, percentage

Learn more about percentages at:

#LearnwithBrainly

3 0

2 years ago

Which of the following values are perfect squares? Check all that apply.

densk [106]

Answer:1,81 and 121.;)

Step-by-step explanation:

6 0

2 years ago

4x -2 + 5x +6<br> What does this equal

egoroff_w [7]

Answer:

9x+4

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

10. Irina ran0.25mile in 2 minutes. At this rate, how many minutes will it take

Rudiy27

Answer:16

Step-by-step explanation:

8 0

2 years ago

Paul is 1.72 m tall, Trisha is 1.58 m tall, Ash is 1.55 m

professor190 [17]

Who is the tallest?

- Ben because he is 0.04 m taller than Paul

Who is the shortest?

- Sophie

8 0

3 years ago