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What is the value of f(−1) when f(x)=2x 2?
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What is the value of f(−1) when f(x)=2x 2?

User Sanaz
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f(x)=2x*2
f(-1)=2(-1)*2
f(-1)= -2*2
f(-1)= -4
User Raymond Roestenburg
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