Question

Calculati:

7^{2} + 7 ^{3} x [( 7^{4} )^{9} : 7 ^{34} + 7 x 7 ^{27} : 7^{26} ] :49 ^{2}


[( 7^{4} )^{9} = 7 la puterea a 4 totul la puterea a 9 a

Answer 1

(7^4)^9=7^36

7^2+7^3×[7^(36-34)+7×7^(27-26)]:(7^2)^2=

7^2+7^3×(7^2+7^2):7^4=
7^2+(7^5+7^5):7^4=
7^2+7^(5-4)+7^(5-4)=
7^2+7+7=
7(7+1+1)=
7×9=
63