find the equation x³+3x²+3x+1 x=-5/2
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Step-by-step explanation:
x=-5/2
(-5/2)³+3(-5/2)²+3(-5/2)+1
= -125/8+3(25/4)-15/2+1
=-125/8+75/4-15/2+1
=-125+150-60+8/8.............(lcm is 8)
=25-52/8
= -27/8
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