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anonymous
 one year ago
Quadratics
anonymous
 one year ago
Quadratics

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welshfella
 one year ago
Best ResponseYou've already chosen the best response.0you need to solve this?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0is there a formula or do i just work it out to find x

welshfella
 one year ago
Best ResponseYou've already chosen the best response.0well first thing is it won't factor so you need to use the quadratic formula and complete the square

welshfella
 one year ago
Best ResponseYou've already chosen the best response.0quadratic formula is x =[ b +/ sqrt(b^2  4ac)] / 2a

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i got 0.91 and 0.41

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.0\(\large\color{black}{ \displaystyle 2x^2x+1 =0 }\) I am assuming you aren't planning to complete the square for this one (it's possible but is probably the hardest method here). So either factoring or quadratic formula. lets find the descriminant first. \(\large\color{black}{ \displaystyle \sqrt{(1)^2 4\cdot 2 \cdot 1 } =\sqrt{18}=\sqrt{7}}\)

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.0your solutions are imaginary (no real solutions)

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.0yes, your answers are incorrect.

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.0let me ask you, have you previously learned about \(i=\sqrt{1}\) ?

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.0so then (for you) it is no solution.
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