find the value of polynomial 7x²- 5x +9 when x=1/2
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Answer: 33/4
Step-by-step explanation: x= 1/2
7*1/2*1/2 - 5*1/2 + 9
= 7*1/4 - 5/2 + 9
= 7/4 - 5/2 + 9
LCM= 4
= -3/4 + 9
= 33/4 or 8.25
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