Solve 0+x^2-10x+30 by completing the square

See answer below

Step-by-step explanation:

x² - 10x + 30 = 0

x² - 10x = -30

x² - 10x + 25 = -30 +25     1/2 of the x term and square that number and add to

                                          both side.

x² -10x + 25 = -5

(x - 5)(x - 5) = -5

=    

If you are in Algebra II , then the answer is not a real answer it will be

(x - 5)² = ±5i

  y= -3x is the required function.

step-by-step explanation:

we have been given a table:

x             y

0             0

1             -3

3             -9

-2             6

we can see that the values of y is -3 times the value of x

hence, the function would be: y= -3x.

put the values of x will give the same y as in the table that means function is satisfying the given table.