Question

3. Write a quadratic polynomial having zeroes
1 and -2​

Answer 1

Step-by-step explanation:

ax²+bx+c is general quadratic equation

We know that Sum of zeroes is -b/a and product of zeroes is c/a

1+(-2)=-b/a

-1=-b/a

b=1

a=1

also

1*(-2)=c/a

-2=c/a

c=-2

so If we put these values in general quadratic equation

it will form

x²+x-2

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