Question

if p(X) =ax2 +bx +c ,then -b/a is equal to​

Answer 1

GIVEN :

The expression is  $p(x) =ax^2 +bx +c$ ,then $-\frac{b}{a}$

TO FIND :

The value of the given expression $-\frac{b}{a}$  from the given expression.

SOLUTION :

Given that $p(x) =ax^2 +bx +c$

We can equate the given expression  p(x)=0

$ax^2 +bx +c=0$

For the quadratic equation $ax^2+bx+c=0$ we have that,

$x^2-(sum of the roots)x+product of the roots=0$

The formula's are given below:

$Sum of the roots=\frac{-b}{a}$

and $Product of the roots=\frac{c}{a}$

From this we have that the expression  $\frac{-b}{a}=Sum of the roots$

∴ the value is $\frac{-b}{a}=Sum of the roots$

∴ The value of $\frac{-b}{a}$ is Sum of the roots.

Answer 2

Answer:

Option d

Step-by-step explanation:

As we all the the formula of sum of zeroes is -b/a.

Hence option d sum of zeroes is ur correct answer

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