Question

va roggg ajutatimaaa ​

Answer 1

Răspuns:

a)(7-3)^3=4^3=64

b)(2+3)^2=5^2=25

c)12^2-5^2=144-25=119

d)40^2+30^2=1600+900=2500

sau

"dam factor comun pe 10"

40^2+30^2=40*40+30*30=10*(4*40+3*30)

=10*(160+90)=10*250=2500

e)50^2-30^2=2500+900=3400

f)2^4+3^2*2*5^0=16+9*2*1=18+16=34

g)5^2-3^2+4^2=25-9+16=32

h)15^2-2^2*3^2=225-4*9=225-36=189

i)5^2+2*5*3+3^2=25+2*5*3+9=25+30+9=64

Explicație pas cu pas:

Un numar la o putere:

a=numarul respectiv

a^2=a*a

a^6=a*a*a*a*a*a

a*0=1

a^1=a