Объяснение:
-8x^2+6x+5=0
8x^2-6x-5=0
D=36-4•8•(-5)=36+160=196
x1=(6+14)/16=20/16=5/4
x2=(6-14)/16=-8/16=-1/2
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Объяснение:
-8x^2+6x+5=0
8x^2-6x-5=0
D=36-4•8•(-5)=36+160=196
x1=(6+14)/16=20/16=5/4
x2=(6-14)/16=-8/16=-1/2