Question

which polynomial is a quadratic polynomial
${x }^{2} - 7x + 2$
​

Answer 1

We have,

x2-7x+2=0

(x+2)(x−7)=0

x=−2,7…(1)

Relation between zeroes and quadratic polynomial can be verified by sum of roots and product of roots.

Let α and β be two roots which are equal to−2 and 7 respectively.…from(1)

As we know,

α+β=a−b​

⇒7−1​=6

αβ=ac​

⇒6−2​=4Answer:

Step-by-step explanation:

Answer 2

Answer:

4 is the correct answer v

I hope soo