***updated answer algebra****

Can someone help me solve this: Decide all values of b in the following equations that will give one or more real number solutions.

(a) 3x^2+bx-3=0
(b) 5x^2+bx+1=0
(c) -3x^2 +bx-3=0
(d) write a rule for judging if an equation has solutions by looking at it in standard form.

is this correct on second post

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  1. I thought I had answered your question back at 3:51 pm of todays messages.

    I do not understand the response you gave to my post.

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