Question

Aplicând formulele (a+b)la pătrat = a la pătrat + 2ab la pătrat + b la pătrat, calculați :
a) 41 la pătrat
b) 59 la pătrat
c) 51 la pătrat
d) 38 la patrat
e) 62 la pătrat
Ajutați va rog frumos! !!!

Answer 1

a) 41^2 = (40+1)^2 = 40^2+2*40*1+1^2= 1600+80+1=1681
b) 59^2 = (50+9)^2=50^2+2*50*9+9^2=2500+900+81=3481
c) 51^2=(50+1)^2=50^2+2*50*1+1^2=2500+100+1=2601
d)38^2=(30+8)^2=30^2+2*30*8+8^2=900+480+64=1444
e)62^2=(60+2)^2=60^2+2*60*2+2^2=3600+240+4=3844

Answer 2

a) 41²=(40+1)²=1681
b) 59²=(50+9)²=3481
c) 51²=(50+1)²=2601 
d) 38²=(30+8)²=1444
e) 62²=(60+2)²=3844

Sper că te-am ajutat!