aliy7897 aliy7897

14-01-2021
Mathematics

contestada

Hrozmarly needs to evaluate the following expression y^2-x^2 when y=9 and x=2. Her answer should be?

i am in 6 grade

Respuesta :

14-01-2021

Answer:

Step-by-step explanation:

y^2 -x^2=

y^2=9^2=81

x^2=2^2=4

81-4=77

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