Find the value of an if (2y+3) is a factor of 2y3 +9y2 -y-a
Answers
Answered by
3
Answer:
Step-by-step explanation:I don't know if it's correct, but yeah 98% it is.
Hope it helps ya.
Answered by
3
Correct question:
Find the value of a if (2y+3) is a factor of 2y³ + 9y² - y - a = 0
Answer:
So value of a is 15.
Step-by-step explanation:
If 2y + 3 = 0
2y = -3
y = -3/2
According to question (2y+3) is a factor of 2y³ + 9y² - y - a = 0. So y = -3/2 will satisfy given equation.
2y³ + 9y² - y - a = 0
putting y = -3/2 in above equation
2 × (-3/2)³ + 9 × (-3/2)² - (-3/2) - a = 0
-27/4 + 81/4 + 3/2 = a
a = (-27 + 81 + 6)/4
a = 60/4
a = 15
So value of a is 15.
#SPJ2
Similar questions