Sum of zeroes of the polynomial 2xsquare +5x +7 is
Answers
Answer:
given 2x²+5x+7
let p(x)=0
2x²+5x+7=0
2x²+7x-2x+7=0
x(2x+7)-1(2x+7)=0
(x-1)(2x+7)=0
x=1or-7/2
Concept:
The quadratic equation is the polynomial equation with the highest degree 2 of a variable in that algebraic expression.
The quadratic equation is generally represented as,
here,
a and b are coefficients of this quadratic expression.
c is constant and x is the variable of this expression.
Sum of the zeros of the quadratic expression is
Product of the zeros of the quadratic expression is
Given:
Quadratic expression:
Find
The sum of zeros of this quadratic expression.
Solution
Quadratic expression:
a = 2
b = 5
c = 7
Sum of the zeros of the quadratic expression is
Hence, the sum of the zeros of the given quadratic expression is