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-6-15-60 = -81
b. = 2ab^2 - c^4
= (2(-3)(1))^2 -(-5)^4
= -6^2 -625
= 36-625
=-589
c. (-3)(1^2) + (1)(-5^2) - (-3)(-5^2)
= -3+25-(-75)
= 97
d. 2(-3) (-3^2 + 3(1^3) - 2(-5^2)
= -6 (9+3-50)
=-6(-38)
=228