x² +7x +10= 0........=> a=1....b=7.....c=10

S = -b/a = -7/1 = -7

P = c/a = 10/1= 10

x² +7x + 6 = 0 .......=> a=1...b=7...c=6

S = -b/a = -7/1 = -7

P = c/a = 6/1= 6

3x³ +(0x²) - 7x + 2 (3° grau).....=>a=3....b=0....c=-7...d=2

S = -b/a = 0/3 = 0

P = -d/a = -2/3

3x² -7x + 2 (2º grau)

S= -b/a = -(-7)/3 = 7/3

P = c/a = 2/3

x² - 2x - 3.........=> a=1....b=-2...c=-3

S = -b/a = -(-2)/1 = 2/1 = 2

P = c/a = -3/1= -3

Ola Ronaldo

x² + 7x + 10 = 0

S = -7

P = 10

x² + 7x + 6 = 0

S = -7

P = 6

3x² - 7x + 2

S = 7/3

P = 2/3

x² - 2x - 3

S = 2

P = -3

pronto