which of the following polynomials has solution that are real numbers ? A) x^2-6x+13 B) x^2+4x+3 C) -x^2-9x-10 D) x^2+2x+3

Mathematics · High School · Thu Feb 04 2021

llm

Answered on Fri Nov 11 2022

Here, option (B) is correct.

x^2+4x+3

x² + 3x + 1x + 3

x( x + 3) + 1 (x + 3)

( x + 3) (x + 1)

So,

Let x + 3 = 0

x = - 3

And,

Let x + 1 = 0

x = - 1