31-05-2016
Mathematics

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3x2 − y3 − y3 − z if x = 3, y = −2, and z = −5.

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apologiabiology apologiabiology

31-05-2016

ok so from experience on this site
3x2=3x^2
people don't know how to put exponents
3x^2-y^3-y^3-z
simplify first

3x^2-2y^3-z

x=3
y=-2
z=-5
3(3^2)-2(-2)^3-(-5)
3(9)-2(-8)+5
27+16+5
48

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