BRAINLIEST, 5 STARS, 50 POINTS AND THANKS IF ANSWERED CORRECTLY.

1. What are the solutions for x when y is equal to 0 in the following quadratic function?
y = x^2 + 4

2. What are the solutions for x when y is equal to 0 in the following quadratic function?
y = x^2 - 81

Thank you if you answered!

see explanation

Step-by-step explanation:

(1)

x² + 4 = 0 ( subtract 4 from both sides )

x² = - 4 ( take the square root of both sides )

x = ± = ± 2i ← complex solutions

(2)

x² - 81 = 0 ( add 81 to both sides )

x² = 81 ( take the square root of both sides )

x = ± = ± 9 ← real solutions

1. -2

2. 9

Step-by-step explanation:

1. 0 = x2 + 4

  -4 = x2

  = x

x = -2

2. 0 = x2 - 81

   81 = x2

    = x

 x = 9

    MARK IT BRAINLIEST!!!

the answer for this question is : 360°

step-by-step explanation:

we have been given a triangle   we need to tell which one of these is a triangle below to map onto itself.

360° rotation is the complete rotation which eventually leads to the same figure which is given.

the correct will be, that is 360° that will cause the triangle below to map onto itself.

what are you trying to solve here

step-by-step explanation: