Question

PLEASE HELP 46 POINTS!!!

Answer 1

Explanation:

a) Input = -9 ⇒ x = -9

y = x² + 3

Plugin x = (-9),

y = (-9)² + 3

= 81 + 3 {(-9)² = -9 * (-9) = 81}

y = 84 ---> Output

y = √x - 2

= √-9 - 2 { i² = -1}

`= \sqrt{3*3 * i^(2)}-2\\\\=3i -2`

y = 3i - 2 ------> Output

b) Output = 0

y = x² + 3

x² + 3 = 0

x² = -3

`x = √(-3)=\sqrt{3i^(2)}\\\\x = i √(3)`

y = √x -2

0 = √x - 2

√x = 2

Take square,

`(√(x))^(2)=2^(2)\\\x = 4`