Question

Trebuie sa il faceti pe 3 numai b) si c) . Va rog !

Answer 1

c)7^3(7-1):7(7-1)-8*5=7^2-40=49-40=9

b)(3^2*2^6-2^5*2*3):2^2*3-2^5=(3^2*2^6-2^6*3):2^2*3-2^5=(2^4*3-2^4)-2^5=2^4(3-1)-2^5=2^5-2^5=0

Answer 2

b)
$(3^2*2^6-2^5*6):12-2^5 = 2^5(3^2*2-6):12-2^5=2^5*12:12-2^5\\=2^5-2^5=0$
c)
$(7^4-7^3):(7^2-7)-2^3*5=7^3(7-1):7(7-1)-8*5= \\=7^2-40=49-40=9$