Question

If x=9 and y=3 then |1-2x|+4y^2

Answer 1

Answer:

53

Step-by-step explanation:

If x = 9 and y = 3, then we have to find the value of $|1 - 2x| + 4y^{2}$.

The problem is simple and we have to put the values of x and y in the expression.

Let, $A = |1 - 2x| + 4y^{2}$.

⇒ A = $|1 - 2(9)| + 4(3)^{2}$

⇒ A = $|1 - 18| + 4\times (9)$

⇒ A = $|- 17| + 36$

[Here, we must define the function |x|.

|x| = x for x ≥ 0 and |x| = - x for x < 0

Now, here x is less than zero and it is - 17.

So. |x| = - x = - ( -17) = 17 ]

⇒ A = 17 + 36  

⇒ A = 53 (Answer)