Question

If p and q are the zeroes , then find (p+q) + pq for the given polynomial *x^2-3x-1

Answer 1

, q are the root of the quadratic polynomial 2x² + 3x + 5

To find :

Value of 1 / p + 1 / q

Solution :

Quadratic polynomial - 2x² + 3x + 5

Comparing the given polynomial with ax² + bx + c we get,

a = 2

b = 3

c = 5

Sum of zeroes = p + q = - b / a = - 3 / 2

Product of zeroes = pq = c / a = 5 / 2

, q are the root of the quadratic polynomial 2x² + 3x + 5

To find :

Value of 1 / p + 1 / q

Solution :

Quadratic polynomial - 2x² + 3x + 5

Comparing the given polynomial with ax² + bx + c we get,

a = 2

b = 3

c = 5

Sum of zeroes = p + q = - b / a = - 3 / 2

Product of zeroes = pq = c / a = 5 / 2

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