Patrick B. answered • 01/17/21
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2(a+1)^2 - (a+1) + 5 =
2(a^2 + 2a+1) -(a+1) + 5 =
2a^2 + 4a + 2 - a - 1 + 5=
2a^2 + 3a + 6
Denise W.
asked • 01/17/21a question about functions
f(x)=2x^2-x+5 Find f(a+1)
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Raymond B. answered • 01/17/21
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just replace x by a+1
f(a+1) = 2(a+1)^2 - (a+1) + 5
=2a^2 +4a + 2 -a -1 + 5
= 2a^2 +3a +6
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