Answer:
The perfect square number between 40 and 50 is 49 which is a square of 7.
Subtract 4 from each side
Divide both sides by 5
Take square root of both sides
Add 3 to both sides
Hello there!
Let's use foil.
First: 4x * 2x = 8x^2
Outside: 4x * -9 = -36x
Inside: -7 * 2x = -14x
Last: -7 * -9 = 63
Now, let's combine these.
8x^2 - 36x - 14x + 63
Finally, we can simplify this
8x - 50x + 63
I hope I helped!
Let me know if you need anything else!
~ Zoe
Answer:
k=25/8
Step-by-step explanation:
In the attached file