Answer:
-3a^2 + 11a
Step-by-step explanation:
= 4a + -3a^2 + 7a
combine like terms
= -3a^2 + 11a
See the graphs
<h2>
Explanation:</h2>
First Case:
Here we have the following function:

In order to graph this function, first let's take:

Step 1. Compress horizontally this function by 1/2, so it becomes:

Step 2. Stretch vertically this function, so it becomes:

Step 3. Shift the graph of the function three units down.

Second Case:
Applying a similar method, we get:
Step 1. Compress horizontally this function by 1/2, so it becomes:
Step 2. Stretch vertically this function, so it becomes:
Step 3. Shift the graph of the function tow units down.
Finally, the graphs are shown below.
<h2>Learn more:</h2>
Parabolas: brainly.com/question/11813702
#LearnWithBrainly
Hi,
Equation:

Since the left side is always >0, the equation has no solution.
Hope this helps.
r3t40
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