Find the difference of functions s and r shown below. r(x) = -x² + 3x s(x) = 2x + 1 ( s-r)(x)=

Part 1)

Part 2)

Step-by-step explanation:

Part 1)

So we have the two functions:

And we want to find:

This is the same as:

Substitute:

So, our answer for Part A is:

Part 2)

Let's find our difference.

Distribute the -1:

Combine like terms:

Add:

And we're done!

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.