Find the value of a if (x+1) is a factor of 12x - 2x2 + x + 3a
38. Find x:
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Answers
Answered by
0
Answer:
1+2+3+4+56+ go boy mental
Answered by
1
Answer:
a = 5
Step-by-step explanation:
using factor and remainder theorm ,
if x + 1 is a fator of zero hence by uaing factor theorm we get the remainder = 0
12x - 2x²+ x + 3a
x + 1 = 0
x = -1
=> 12(-1) - 2(-1)² + (-1) +3a = 0
=> -12 -2 -1 +3a = 0
=> -15 +3a = 0
=> 3a = 15
=> a = 15/3
=> a = 5
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