(x-3) is a factor of x^2+2x-15. state how stepby step
Answers
Answered by
1
Answer:
yes
Step-by-step explanation:
let x-3 is it's factor
so, x-3=0
x=3
p(x)=x^2 +2x -15
p(3)= 3^2 + 2(3)-15
= 9+6-15
=0
the remainder is zero it means that our supposition is right
x-3 is its factor.....
Answered by
4
if (x-3) is the factor of x^2+2x-15=0 then it will satisfy the equation
x-3=0
x=3
f(x)=x^2+2x-15
f(3)=3^2+2(3)-15
f(3)=9+6-15
f(3)=15-15=0
hence (x-3) is the factor of above equation
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