Question

B=2^7-11{91-5×[22-5×(40^2-41×39)]}+(3^2-2^3)^2017
Semnul acesta ^ înseamnă la puterea... exemplu:2^3 înseamnă 2 la puterea a treia ​

Answer 1

Răspuns:

7

2

−11∗(91−5[22−5∗(40

2

−41∗39)])+(3

2

−2

3

)

2017

= 128 -11*(91-5[22-5*( 40^{2}-1599)])+( 9 -8 ) ^{2017} =128−11∗(91−5[22−5∗(40

2

−1599)])+(9−8)

2017

= 128 -11*(91-5[22-5* 40^{2}-7995])+1 ^{2017}=128−11∗(91−5[22−5∗40

2

−7995])+1

2017

= 128 -11*(91-5[8017-5* 40^{2}])+1 =128−11∗(91−5[8017−5∗40

2

])+1= 128 -11*(91-40085+25* 40^{2})+1=128−11∗(91−40085+25∗40

2

)+1= 128 -11*(-39994+25* 40^{2})+1=128 +439934-275* 40^{2}+1=128−11∗(−39994+25∗40

2

)+1=128+439934−275∗40

2

+1= 440063-275*1600=440063-440000=63440063−275∗1600=440063−440000=63