find the discriminat of each quadratic equation then state the number and type of solutions

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01-06-2017
Mathematics

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find the discriminat of each quadratic equation then state the number and type of solutions

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ghanami ghanami · Answer 1 · 2017-06-01T19:34:31+02:00

ghanami ghanami

01-06-2017

hello :
the discriminat of each quadratic equation : ax²+bx+c=0 ....(a ≠ 0) is :
Δ = b² -4ac
1 ) Δ > 0 the equation has two reals solutions : x = (-b±√Δ)/2a
2 ) Δ = 0 : one solution : x = -b/2a
3 ) Δ < 0 : no reals solutions

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