Question

if x - 1 is a factor of polynomial 2x square - 28 then find the value of a​

Answer 1

Answer:

This is the answer for this question

Answer 2

The value of a is 1

Step-by-step explanation:

Given that x-1 is a factor of polynomial $2x^2-2a$

To find the value of a :

Since x-1 is a factor of the given polynomial we can write it as

x-1=0

• Implies that x=1
• Therefore 1 is a zero for  the given polynomial
• Therefore $2x^2-2a=0$
• Therefore put x=1 in the  given polynomial $2x^2-2a=0$ we get

• $2(1)^2-2a=0$
• $2-2a=0$
• $2(1-a)=0$
• $1-a=\frac{0}{2}$
• $1-a=0$
• $a=1$

Therefore the value of a in the given polynomial is 1