Answer :

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x² - 3y³ + 4a ; When x = -4, y = -2, z = 6

Simply plug in -4 for x, -2 for y, and 6 for z in the given equation.

(-4²) + {-3(-2³)} + 4(6)

Simplify.

16 + -3(-8) + 24

Simplify.

16 + 24 + 24

Simplify.

40 + 24

Simplify.

64

~Hope I helped!~

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