Ответ:
(p-5)(5+p)=11-5p
(p-5)(p+5)=11-5p
p^2-25=11-5p
p^2-25-11+5p=0
p^2-36+5p=0
p^2+5p-36=0
D=5^2-4*(-36)=169
p1=(-9), p2=4
(5p+p2-25-5p) =11-5p
p2-25=11-5p
p2+5p=11+25
p2+5p=36
p2+5p-36=0
a=1, b=5, c=-36
D=b2-4ac= 5*5-4*1*(-36) =25+144=169
p=-b±√D = -5±√169 = -5±13
2a 2*1 2
p1= -5+13 = 8 = 4
2 2
p2= -5-13 = -18 = -9
Ответ: -9; 4
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Answers & Comments
Ответ:
(p-5)(5+p)=11-5p
(p-5)(p+5)=11-5p
p^2-25=11-5p
p^2-25-11+5p=0
p^2-36+5p=0
p^2+5p-36=0
D=5^2-4*(-36)=169
p1=(-9), p2=4
Ответ:
(5p+p2-25-5p) =11-5p
p2-25=11-5p
p2+5p=11+25
p2+5p=36
p2+5p-36=0
a=1, b=5, c=-36
D=b2-4ac= 5*5-4*1*(-36) =25+144=169
p=-b±√D = -5±√169 = -5±13
2a 2*1 2
p1= -5+13 = 8 = 4
2 2
p2= -5-13 = -18 = -9
2 2
Ответ: -9; 4