Question

If x = 2, y = 3 and z = 4, then x^2 – y^2 + z^2 =

Answer 1

Step-by-step explanation:

According to the question the equation will be ,

2^2 - 3^2 + 4^2

=> 4 - 9 + 16

=> 20 - 9 = 11

Answer) 11

Answer 2

Answer:

11

Step-by-step explanation:

(2)^2-(3)^2 ➕ (4)^2

4 - 9 ➕ 16

20-9

11