Introduction to quadratic equations?
If you solve the equation by completing the square, fill in the blanks.
9x^2+9x+4=0
x^2+x+blank=-4/9+blank <---- (blank one, both the same)
(x+1/2)^2=blank
x+1/2= ± √blank <------ blank 2(both the same)
x=-1/2 ±blank i <---- blank 3
enter blank 1, blank 2, blank 3 as common fractions separated by commas
3 answers
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