2(n - 1) + 4n = 2(3n - 1)
2n - 2 + 4n = 6n -2
6n - 2 = 6n - 2 (equal)
6n - 6n = 2 - 2
0 = 0
whatever value you put into the place of n, you'll get 0 = 0
Answer:
3x² + 3x - 36=
(3x+12)(x-3)
x² - 3x - 28=
(x+4)(x-7)
Step-by-step explanation:
For both equations use the method called the "Cross Method". It is useful for these type of factorisation questions called "Trinomials".
For more info on the cross method.
Here it is:
https://www.mathsteacher.com.au/year10/ch10_factorisation/05_cross_mult_method/cross.htm
Hope you enjoyed :D
Answer:
After using the offer the carpet would cost Ahmed $180.
Step-by-step explanation:
Given:
Cost of the carpet = $240
Discount percent = 25%
We need to find the cost of the carpet after discount.
Solution:
First we will find the Discount cost.
Now we know that;
Discount cost is equal to Discount percent multiplied by Cost of the carpet divided by 100.
framing in equation form we get;
Discount cost = 
Now we will find the Cost of the carpet after discount.
Now we know that;
Cost of the carpet after discount is equal to Cost of the carpet minus Discount cost.
framing in equation form we get;
Cost of the carpet after discount = 
Hence After using the offer the carpet would cost Ahmed $180.