Question

from the quadratic equations from the roots given below ​

Answer 1

Answer:

step by step explanation:

the quadratic equations is x2+(sum of the roots)x+(product of the roots)=0

1) roots are 0,4

sum of the roots =0+4=4

product of the roots=0×4=0

the quadratic equations is x2+4x=0

2)roots are 3,-10

sum of the roots=3-10=-7

product of the roots= 3×-10=-30

the quadratic equation is x2-7x-30=0

3) roots are 1/2,-1/2

sum of the roots=1/2-1/2=0

product of the roots=1/2×-1/2=-1/4

the quadratic equations is x2-1/4=0

4) roots are 2-✓5,2+✓5

sum of the roots =2-✓5+2+✓5=4

product of the roots=[2-✓5][2+✓5]=4-5=-1

the quadratic equations is x2+4x-1=0