Respuesta :

ikimrc

Answer:

you plug in the numbers

Step-by-step explanation:

Please mark brainliest!!

msm555

Answer:

√x⁴-y²

x²-y²

(x+y)(x-y)

when

x=3

y=-6

√x⁴-y²=(3-6)(3+6)=-3×9=-27 is your answer

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