Question

use the factor theroem to determine whether x+3 is factor of x²+2x-3 or not​

Answer 1

Step-by-step explanation:

(x+3). (x²+2x-3).

x+3) x²+2x-3( x-1

x²+3x

- -

___________

-x-3

-x-3

+ +

________

0

________

Answer 2

Answer:

factor theorem states that , if the value of x , when substituted in the dividend , the outcome value should be 0 for the divisor to be a perfect factor of the dividend.

Step-by-step explanation:

divisor = x+3

therefore, x = -3

substituting the value of x in x²+2x-3 =

-3²+(2× -3)-3

= 9 - 6 - 3

= 0 ( it's the remainder)

hence , the dividend is perfectly divided by the divisor with the remainder 0. Therefore, x+3 is a factor of x²+2x-3.

hope it helped

thanks