What is the product of (5x+1)(5x-1)
2 answers:
Answer: The required product is ![25x^2-1.](https://tex.z-dn.net/?f=25x%5E2-1.)
Step-by-step explanation: We are given to find the following product :
![P=(5x+1)(5x-1)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)](https://tex.z-dn.net/?f=P%3D%285x%2B1%29%285x-1%29~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~%28i%29)
We will be using the following formula :
![(a+b)(a-b)=a^2-b^2.](https://tex.z-dn.net/?f=%28a%2Bb%29%28a-b%29%3Da%5E2-b%5E2.)
From (i), we get
![P\\\\=(5x+1)(5x-1)\\\\=(5x)^2-1^2\\\\=25x^2-1.](https://tex.z-dn.net/?f=P%5C%5C%5C%5C%3D%285x%2B1%29%285x-1%29%5C%5C%5C%5C%3D%285x%29%5E2-1%5E2%5C%5C%5C%5C%3D25x%5E2-1.)
Thus, the required product is ![25x^2-1.](https://tex.z-dn.net/?f=25x%5E2-1.)
You might be interested in
Answer:
Area = 6.2 yards²
Step-by-step explanation:
area = bh
area = 2(3.1)
Answer:
It could be a) -3
Step-by-step explanation:
I'm not quite sure but it may be.
Answer:
It would be M=-1/9
Step-by-step explanation:
You would use the slope formula:
m= y2−y1/ x2−x1
=3-4/7--2
=-1/9
Answer:
total - given, 360 -139 = 221
99.9/.3 is 333. Hope it helps.