Answer: The simplified form will be

Step-by-step explanation:
Since we have given that

We need to simplify the above expression, we get that

Now, we first factorize the quadratic equation:

Similarly,

So, it will become

Hence, the simplified form will be

Two numbers are called x and y
x + y = 15
3x = y+2
Convert to slope intercept:
y = -x + 15
y = 3x - 2
Answer:
3/7
Step-by-step explanation:
Answer:
255
Step-by-step explanation:
They can buy petrol on all the days, so it must follow these following conditions.
Each of the digits less than 6.
Odd(the last digit can be 1,3, or 5).
Sum of the three digits greater than 10
Multiple of 3. This means that the sum of the digits must be divisible by 3.
Sum of the digits less than 15. So, between 11 and 14.
At least two of the digits are the same
Total value less than 500. Which means that the first digits can be from 1 to 4.
Following all these conditions
The answer is 255

--------------------------------------------------
Factorise a² - b² :
--------------------------------------------------

--------------------------------------------------
Crossed out common factors, (x + a) :
--------------------------------------------------