For what value of m , x^ 3
- 2 mx^2 + 16 is divisible by x + 2
Answers
Answered by
1
Answer :
Let, f (x) = x³ - 2mx² + 16
If f (x) be divisible by (x + 2), then
f (- 2) = 0
or, (- 2)³ - 2m (- 2)² + 16 = 0
or, - 8 - 8m² + 16 = 0
or, 8m² = 8
or, m² = 1
or, m = ± 1
Hope it helps! (:
Let, f (x) = x³ - 2mx² + 16
If f (x) be divisible by (x + 2), then
f (- 2) = 0
or, (- 2)³ - 2m (- 2)² + 16 = 0
or, - 8 - 8m² + 16 = 0
or, 8m² = 8
or, m² = 1
or, m = ± 1
Hope it helps! (:
Similar questions