Question

Use the factor theorem to determine whether x + 3
is a factor of x2 + 2x - 3 or not.


solution:

By factor theorem,if x+3 is a factor of the given polynomial, then p(-3)=0
p(x)=x²+2x-3
therefore p(-3)=(-3)²+2(-3)-3
= 9-6-3
therefore p(-3)=0

Ans.(x+3) is the factor of
x²+2x-3.​

Answer 1

Answer:

By factor theorem,if x+3 is a factor of the given polynomial, then p(-3)=0

p(x)=x²+2x-3

therefore p(-3)=(-3)²+2(-3)-3

= 9-6-3

therefore p(-3)=0

Ans.(x+3) is the factor of

x²+2x-3.

Step-by-step explanation:

Hope it help you

Answer 2

Answer:

$x + 3 \: is \: a \: factor \: of \: given \: polynomial$

Step-by-step explanation:

if

$x + 3 \: is \: a \: factor \: then \: f( - 3) \: will \: be \: 0$

let us check

$f( - 3) = {( - 3)}^{2} + 2( - 3) - 3$

$f( - 3) = 9 - 6 - 3$

$f( - 3) = 9 - 9$

$f( - 3) = 0$

therefore

$x + 3 \: is \: a \: factor \: of \: given \: polynomial$