Question

write a quadratic polynomial , sum of whose zero is -7 and product is -18 ? ​

Answer 1

Given:

• Sum of zeroes = -7

• product of zeroes = -18

To find :

• Quadratic polynomial = ?

Solution :

• As we know that:

• Quadratic polynomial

=> x² - ( sum of Zeroes ) x + product of zeroes .

Put the given values :

• F (x) = x² - (-7) x + ( -18 )

=> F (x) = x² +7x - 18 .

Hence, x² + 7x - 18 is the quadratic polynomial whose sum of zeroes is -7 and product of zeroes is -18 .

Answer 2

Answer:

p(x)=x²-(a+b)x+a.b

=x²-(7)x+(-18)

=x²+7x-18 ans

Step-by-step explanation:

a+b=-7

a×b=-18