Question

If a and b are the zeros of the polynomial 2x+11x+5=0 then find 1/a+1/b-2ab

Answer 1

2x² + 11x + 5 = 0
2x² + 10x + x + 5 = 0
2x(x+5) + 1(x+5) = 0
(x+5) (2x+1) = 0

x = -5 and x = -1/2

a = -5 and b = -1/2

➡ 1/a + 1/b - 2ab

➡ 1/-5 + (-2) - 2(-5)(-1/2)

➡ -1/5-2-5

➡ -1/5 - 7

➡ -36/5

Answer 2

Answer:

Step-by-step explanation:

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