ПОМОГИТЕ С РЕШЕНИЕМ!

Question

ПОМОГИТЕ С РЕШЕНИЕМ!

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Answer 1

А)t2-5t/t+5=0                    
t2-5t=0
t(t-5)=0
t=0 или t-5=0
            t=5. Ответ: 0; 5.

Comments

б) 4a-5/a2+1=4/a

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4a-5/ (a+1)(a-1)-4/a=0

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a(4a - 5)-4(a+1)(a-1)=0

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4a2-5a-4a-4-4a+4/a(a+1)(a-1)=0

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4a2-13a/a(a+1)(a-1)=0

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4a2-13a=0

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a(4a-13)=0

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a=0 или 4a-13=0

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4a=13

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a=3,25