Question

x^2-y^2-z^2 for x=9 y=-7 and z=3 , the answer is 23 ( wrong will be reported) ​

Answer 1

x is equal to 9 square is 81

y is equal to -7 square is 49

z is equal to 3 square is 9

=81-49+9

=90-49

=90-40-9

=50-9

=41

Answer 2

Answer:

X is equal to 9 square is 81

Y is equal to -7 square is 49

Z is equal to 3 square is 9

= 81-49+9

= 90-49

= 90-40-9

= 50-9

= 41

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