5x^2/6y when x = 4 and y = 10

4/3

Step-by-step explanation:

Now putting the values of x and y

89

step-by-step explanation:

i think it's ф or x=6,-6

step-by-step explanation:

-x^2=-36

x^2=-36

ф

or

if you mean by : -(x^2)=-36

it'll be: x^2=36

x=6,x=-6

hope it'll ! have a good day!

you for asking!