SOLUTION: x^2-4-0 , 3x+x^2=0, x^2-10x+2=0 , 4x^2-16x=-16

Question 107509: x^2-4-0 , 3x+x^2=0, x^2-10x+2=0 , 4x^2-16x=-16
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
Not fair getting around the 6 question per day limit by asking about multiple problems. I'll do 2 of them:

Remember that , so

or
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Factor out an x:

So or

Hint for #3: It won't factor, use the Quadratic Formula
Hint for #4: Divide through by 4 first to get rid of the >1 coefficient on the term.
I'll leave checking the answers to you. Remember, each problem has two answers, so you have to check both.
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