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What is f(–3) for the function f(a) = –2a2 – 5a 4

What is f(–3) for the function f(a) = –2a2 – 5a 4
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What is f(–3) for the function f(a) = –2a2 – 5a 4

User Omtara
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f(a) = -2a^2 - 5a^4
if a=-3

f(-3) = -2(-3)^2 - 5(-3)^4
= (-2*9) - (5*81)
= -18 - 405
= 423
User Ravi Makvana
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