The quadratic equations2x2 +px+3=9 has two equal roots when the value of p is
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Answer:
For equal roots, p should be 6√(-2)
Step-by-step explanation:
An quadratic equation in the form
ax^2+bx+c=0 has equal roots when the term b^2=4ac.
This equation :
2x^2+px+3=9
2x^2+px-6=0
For this equation,
a=2, b=p, c=3-9=-6
So, p^2=4*2*(-6)
p^2=(-72)
p=√(-72)
p=6i√2, where i=√(-1)
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