Question

Escreva a equação ax2 + bx + c = 0, quando: a) a = 1, b = 6, c = 9 b) a = 4, b = -6, c = 2 c) a = 4, b = 0, c = -25 d) a = -21, b = 7, c = 0 e) a = -1, b= -9 f) a = 5, c = 2 g) a = -4, c =-5 h) a = -1, b = -4 i) a = 5, b = 3, c = -3 j) a = 2, c = -1

Answer 1

Explicação passo-a-passo:

a) a = 1, b = 6, c = 9

• x² + 6x + 9 = 0

b) a = 4, b = -6, c = 2

• 4x² - 6x + 2 = 0

c) a = 4, b = 0, c = -25

• 4x² - 25 = 0

d) a = -21, b = 7, c = 0

• -21x² + 7x = 0

e) a = -1, b = -9

• -x² - 9x = 0

f) a = 5, c = 2

• 5x² + 2 = 0

g) a = -4, c = -5

• -4x² - 5 = 0

h) a = -1, b = -4

• -x² - 4x = 0

i) a = 5, b = 3, c = -3

• 5x² + 3x - 3 = 0

j) a = 2, c = -1

• 2x² - 1 = 0

Answer 2

a) a = 1, b = 6, c = 9• x² + 6x + 9 = 0

b) a = 4, b = -6, c = 2• 4x² - 6x + 2 = 0

c) a = 4, b = 0, c = -25• 4x² - 25 = 0

d) a = -21, b = 7, c = 0• -21x² + 7x = 0

e) a = -1, b = -9• -x² - 9x = 0

f) a = 5, c = 2• 5x² + 2 = 0

g) a = -4, c = -5• -4x² - 5 = 0

h) a = -1, b = -4• -x² - 4x = 0

i) a = 5, b = 3, c = -3• 5x² + 3x - 3 = 0

j) a = 2, c = -1• 2x² - 1 = 0