2) sendo a=2 e b=1 , determine o valor de :
a)a²+2ab+b²
b)b²a+2b²a³+ba²
a) 2²+2.2.1+1²
4+4+1=9
b) 1².2+2.1².2³+1.2²
1.2+2.1.8+1.4
2+16+4=22
a)2²+ 2*2*1 + 1²
4+4+1= 9
b)1²*2 + 2*1²*2³+ 1*2²
2+16+4= 22
a) 2² + 2.2.1 + 1² = 4 + 4 + 1 = 9
b) 1².2 + 2.1².2³ + 1.2² = 2 + 16 + 4 = 22
Comments
a) 2²+2.2.1+1²
4+4+1=9
b) 1².2+2.1².2³+1.2²
1.2+2.1.8+1.4
2+16+4=22
a)2²+ 2*2*1 + 1²
4+4+1= 9
b)1²*2 + 2*1²*2³+ 1*2²
2+16+4= 22
a) 2² + 2.2.1 + 1² = 4 + 4 + 1 = 9
b) 1².2 + 2.1².2³ + 1.2² = 2 + 16 + 4 = 22