4 years ago

How do you factor out the coefficient of 2.2x+4.4

1 answer:

8 0

2.2x and 4.4 have a GCF of 2.2. So, you can factor that out like so:
2.2x+4.4 = 2.2*x+2.2*2 = 2.2(x+2)

Hope this helps!

You might be interested in

What percent of 45 is 72

IRINA_888 [86]

45%of x=72
45/100 of x=72
9/20 of x=72
x=72*20/9
x=160..............

3 0

3 years ago

Find the rate of change <br>(Pls help!)

kolbaska11 [484]

Answer: 11.5

Step-by-step explanation:

It’s delta y over delta x so you would take any two combination of coordinates and subtract and divide. I used 57.50-23 over 5-2... this gets you 34.5 over 3. This is also equal to 11.5 :)

4 0

3 years ago

Factor 4x^2+81 over the set of complex numbers.

Hunter-Best [27]

$Use:\\\\i=\sqrt{-1}\to i^2=-1\\\\a^2-b^2=(a-b)(a+b)\\--------------------\\\\4x^2+81=2^2x^2+9^2=(2x)^2-(-9^2)=(2x)^2-(-1)(9^2)\\\\=(2x)^2-(i^2)(9^2)=(2x)^2-(9i)^2=\boxed{(2x-9i)(2x+9i)}$