find the value of the polynomial 3x^3 - 4x^2 + 7x -5,whenx= 3 and also when x= -3
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Step-by-step explanation:
When x = 3
p(3) = 3(3)³ - 4(3)² +7(3) - 5
= 81 - 32 + 21 - 5
= 102 - 37
= 65
When x = -3
p(-3) = 3(-3)³ - 4(-3)² + 7(-3) - 5
= -81 -32 -21 -5
= -139
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