Answer:
10) f(-1) = -2(-1)⁴ + (-1)³ + 5(-1)² - 3(-1) - 7
= -2 - 1 + 5 + 3 - 7
= -2
12) h(7) = 7⁵ - 4(7³) + 3(7²) + 11(7) - 8
= 16,807 - 1,372 + 147 + 77 - 8
= 15,651
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