24(х+5)+24(х-5)=2(х+5)(х-5)
24х+120+24х-120=2(х²+5х-5х-25)
48х=2х²-50
х²-24х-25=0
D=(-24)²-4*1*(-25)=576+100=676
√D=√676=26
x1=(24+25)/2=24,5
x2=(24-25)/2= -0,5
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24(х+5)+24(х-5)=2(х+5)(х-5)
24х+120+24х-120=2(х²+5х-5х-25)
48х=2х²-50
х²-24х-25=0
D=(-24)²-4*1*(-25)=576+100=676
√D=√676=26
x1=(24+25)/2=24,5
x2=(24-25)/2= -0,5