Question

sum of the zeroes of the polynomial p(X)= X2-kx+9 is 7 Find the value of K?​

Answer 1

Answer:

Value of K is 7

Step-by-step explanation:

Co-efficient of x = sum of zeroes of a polynomial

Answer 2

★ Concept :

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◆ Polynomials = Poly (means many) + nomials (means terms). Thus, a polynomial contains many terms. Thus, a type of algebraic expression with many terms having variables and coefficients is called polynomial.

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If we have general Quadratic equation : ax² + bx + c

Then ,sum roots of this quadratic equation = - cofficent of x² / cofficient of x

Then according to the given question !

7 = - ( -k )

So, k = 7