Question

If one zero of the quadratic polynomial
${x}^{2} + 3x + k$
is 2. Then the value of k is

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Answer 1

Answer:

sum of the zeroes of the polynomial is -b/a = -3

2 + B =-3

B = -5

product of the zeroes = c /a = k = -5 ×-3 = 15

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