Question

If 2x + 1 is a factor of 2x^2 + ax - 3, find the value of a.​

Answer 1

Answer:

a = -5

Step-by-step explanation:

look the pic

Answer 2

Answer:

Ur answer:

$2x+1=0\\ =>2x=-1\\ =>x=\frac{-1}{2} \\2x^{2} +ax-3=0\\ =>2(\frac{-1}{2} )^{2}+a(\frac{-1}{2} )-3=0\\ =>\frac{1}{2} -\frac{a}{2} -3=0\\ =>\frac{1-a-6}{2}=0\\ =>\frac{-5-a}{2}=0\\ =>-5-a=0\\ =>-a=5\\ =>a=(-5)$

Step-by-step explanation:

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