SOLUTION: a)x^2-2x=15 b)3x^2+19+1=0 thank you very much

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Question 63410: a)x^2-2x=15
b)3x^2+19+1=0
thank you very much
Answer by 303795(602) About Me  (Show Source):
You can put this solution on YOUR website!
x%5E2-2x=15 Subtract 15 from each side
x%5E2-2x-15=15-15
x%5E2-2x-15=0 Factorise
x-5%29%28x%2B3%29=0
So x = 5 or x = -3