if a and b are the zeroes of the quadratic polynomial 3x™2-5x-2 then evaluate a^3 + b ^3
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3x² - 5x - 2
a+b = 5/3
ab = -2/3
a³+b³
(a+b)³-3a²b-3ab²
(5/3)³-3ab(a+b)
125/27 - 3(-2/3)(5/3)
125/27 - (-10/3)
125/27 + 10/3
(125+90) / 27
215/27
Hope it works:)
a+b = 5/3
ab = -2/3
a³+b³
(a+b)³-3a²b-3ab²
(5/3)³-3ab(a+b)
125/27 - 3(-2/3)(5/3)
125/27 - (-10/3)
125/27 + 10/3
(125+90) / 27
215/27
Hope it works:)
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