(AddingRetinal Numbers)

15.9+(-6.6)

9.3

Step-by-step explanation:

15.9 + (-6.6)

15.9-6.6

9.3

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!

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