3 years ago

Let f(x)=x^2−4x. Solve f(x)=−4.

Mathematics

1 answer:

umka2103 [35]3 years ago

7 0

Answer:

( x + 2) ( x - 2 )

Step-by-step explanation:

f(x) = x^2 -4x

-4 = x^2 - 4x

0 = x^2 - 4x + 4

0 = ( x + 2) ( x - 2 )

( x + 2) ( x - 2 )

You might be interested in

Find the simple interest on a loan of $45,000 for 5 years at 3%.

Tasya [4]

Answer:

51,750

Step-by-step explanation:

45,000x.03=1,350

1,350x5=6750

45,000+6750=51,750

8 0

2 years ago

Read 2 more answers

The temperature in Minneapolis was -9°F. The next day, the temperature was warmer than -9°F.

Dimas [21]

Answer:

The temperature in Minneapolis was -9°F. The next day, the temperature was warmer than -9°F.

let increased temperature be x

temperature of next day = -9°f +x

4 0

2 years ago

How far apart are cities A and B in the new map?

Lubov Fominskaja [6]

Answer:

22.5 miles

Step-by-step explanation:

If 2 inches equal 15 miles then 1 mile equals 7.5 miles. 15/2=7.5

7.5 x 3=22.5 miles.

5 0

3 years ago

Four runners start at the same point; Lin, Elena, Diego, Andre. For each runner write a multiplication equation that describes t

Burka [1]

Answer:

Lin: 25 × 8,2 = 205 meters

Elena: 250 ÷ 28 = 8,9 meters per second

Diego: 32 × (-8,1) = -250,2 meters

Andre: -258 ÷ 25 = -10,32 meters per second

7 0

1 year ago

Which tool is not used for measurement

11Alexandr11 [23.1K]

what are the options Step-by-step explanation:

5 0

2 years ago