Question

Find a if (x-a) is a factor of x^3-ax^2 + 2

Answer 1

Answer:

If x-a=0

x=+a

Substituting in Actual Equation,

a^3 - a(a^2) + 2

= a^3 - a^3 +2....... a^3 cancelled

=2.

HENCE PROVED.

PLS MARK AS BRAINLIEST

Answer 2

Answer:

Step-by-step explanation:

→ x-a is a factor of x³-ax²+2

→ we know,

→ x-a=0

→ x=a

→ Substitung the value of x as a,

→ we have,

→ (a)³ - a(a)² + 2

→ a³ - a³ + 2 =  0

→ 0 + 2 = 0

→ 2 = 0

→ -2