If m and n are the zeroes of the quadratic polynomial
f(x)=3x² - 5x -2, then evaluate m³ + n³.
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Answer:
19/27
Step-by-step explanation:
3x²-5x-2
3x²-3x+2x-2
3x(x-1)+2(x-1)
(3x+2)(x-1)
x= -2/3 or x=1
m=-2/3, n=1
m³+n³=(-2/3)³+1³
=-8/27+1
=(-8+27)/27
=19/27
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