Find the quadrilateral polynomial with each the given number as the sum and product of its zeros -3 and -2 respectively
Answers
AnsWer :
x² + 3x + 2.
Correct QuestioN :
Find the quadratic polynomial with each the given number as the sum and product of its zeros - 3 and 2 respectively.
To FinD :
The quadratic polynomial
SolutioN :
We have, zeros
★ Sum of Zero = - b / a = - 3.
★ Product of Zeros = c / a = 2.
We know,
K [ x² + Sx + P ]
where as,
- S Sum of Zero.
- P Product of Zero.
- K content term.
Now, putting the given value on it.
→ K[ x² - ( - 3 )x + ( 2 ) ]
→ K[ x² + 3x + 2 ]
Therefore, the quadratic polynomial is x² + 3x + 2.
VerificatioN :
Taking Equation,
- x² + 3x + 2.
→ x² + 3x + 2.
→ x² + 2x + x + 2.
→ x( x + 2 ) + 1 ( x + 2 )
→ ( x + 1 )( x + 2 )
___________
→ x + 1 = 0.
→ x = - 1.
___________
→ x + 2 = 0.
→ x = - 2.
Sum of the Zero
→ ( - 1 ) + ( - 2 ) = - b / a.
→ - 1 - 2 = - 3 / 1.
→ - 3 = - 3.
Product Of Zeros
→ ( - 1 ) + ( - 2 ) = c / a.
→ - 1 - 2 = 2.
→ 2 = 2.
Hence Verified.
Step-by-step explanation:
QUESTION :-
Find the quadrilateral polynomial with each the given number as the sum and product of its zeros -3 and -2 respectively
ANSWER:-
We have, zeros
★ Sum of Zero = - b / a = - 3.
★ Product of Zeros = c / a = 2.
We know,
K [ x² + Sx + P ]
where as,
S Sum of Zero.
P Product of Zero.
K content term.
Now, putting the given value on it.
→ K[ x² - ( - 3 )x + ( 2 ) ]
→ K[ x² + 3x + 2 ]
Therefore, the quadratic polynomial is x² + 3x + 2.