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Please help i need help with number 4 and 5
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Aug 17, 2019
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Please help i need help with number 4 and 5
Mathematics
middle-school
Jdross
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Question 4. Just replace x with 2a.
So f(2a) = 5(2a)^2 + 4(2a)
= 5*4a^2 + 8a
= 20a^2 + 8a
Question 5. Since x = 3, which is more than 1, use the second equation.
f(3) = 3^2 + 1
= 9 + 1
= 10
Btantlinger
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Aug 24, 2019
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