Question

1-calcule o valor numerico das expressoes: a) 3x+5 para x=7 b) a2+2ab+b2 para a=2 e b=3

Answer 1

a) 3.7+5= 21+5=26
b) 2.2+2.2.3+3.2=4+12+6=22

Answer 2

a) 3.7 + 5 = 21 + 5 = 26
b) 2.2+2.2.3+3.2=4+12+6=22