12a^2 - 7a -2 ; 4a - 1
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Answered by
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-3
Step-by-step explanation:
4a - 1 = 0
4a =1
a =1/4
p(1/4) = 12*(1/4)^2 - 7*1/4 -2
= 12/16 - 7/4 -2
= 3/4 - 7/4 -2
= ( 3 - 7 -8)/4
= -12/4
= -3
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