Question

find the zeores of a quadratic polynomial 4x^2 +8x​

Answer 1

Answer:

The zero of the quadratic polynomial 4x² +8x​ is -2

Step-by-step explanation:

For finding the zeroes of the polynomial,

We have to equate the polynomial to 0

i.e.,4x²+8x=0

4x²= -8x

We get,4x= -8

x= -2

Hope it helps you..

Mark me as the brainliest...

Answer 2

ɢɪᴠᴇɴ:

• A quadratic Polynomial is given to us.
• The polynomial is 4x²+8x.

ᴛᴏ ғɪɴᴅ:

• The zeroes of the quadratic polynomial.

ᴀɴsᴡᴇʀ:

Given polynomial is 4x²+8x .

So for finding zeroes we will equate it with 0.

$\sf{\implies 4x^2+8x = 0}$

$\sf{\implies 4x ( x +2 ) = 0 }$

$\sf{\implies 4x = 0\:\:\:\:or\:\:\:\: (x+2)=0}$

$\underline{\boxed{\red{\tt{\mapsto x = 0,-2}}}}$

$\green{\tt{Hence\: required\: two\: zeroes\:are\:0\:and\:(-2)}}$

_______________________________

$\underline{\blue{\tt{More\: related\:questions\:and\: answers}}}$

$\underline{\underline{\red{\bf{i)What\:is\: polynomial?}}}}$

• The expression in the form of p(x)=$\sf{a_0+a_1 x +a_2 x^2+.......+a_n x^n}$ where $\sf{a_n\neq 0}$ is called a polynomial.
• Ex - 2x²+5x+4

$\underline{\underline{\red{\bf{ii) What\:are\:zeroes\:of\: polynomial?}}}}$

• A real number ß is called a zero of the polynomial p(x) , if p(ß)=0.

$\underline{\underline{\red{\bf{iii)What\:is\:degree\:of\: polynomial?}}}}$

• The highest power of the variable is called the degree of polynomial.

$\underline{\underline{\red{\bf{iv) What\:is\:classification\:on\:basis\:of\:degree?}}}}$

• On the basis of degree polynomial are generally classified as

1. Linear polynomial - Polynomial of degree 1.
2. Quadratic polynomial - Polynomial of degree 2.
3. Cubic polynomial -Polynomial of degree 3
4. Biquadratic polynomial - Polynomial of degree 4 .

$\underline{\underline{\red{\bf{v)What\:is\: classification\:on\:basis\:of\:number\:of\:teem?}}}}$

• On the basis of number of terms Polynomial are generally classified as:

1. Monomial - Have only one term.
2. Binomial - Have two terms.
3. Trinomial - Have three terms.