Question

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

Answer 1

Answer:

Hiiii mate

Step-by-step explanation:

Let p(x) = x + 2x 3.

Divisor =X+3

p(-3) = (-3) +2x (-3)-3 = 9-6-3 = 0

So, by factor theorem, (x +3) is a factor of x+ 2X 3.

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Answer 2

Answer:

If x+3 is a factor of x²+2x-3 then the remainder should be zero

p(x)=0

x²+2x-3=0

(-3)²+2(-3)-3=0

9-6-3=0

9-9=0

0=0

L.H.S=R.H.S

Therefore, x+3 is a factor of x²+2x-3