Question

a)x²-3x=0

b)3x²+15x=0

c)2x²-7x=0

d)9x²+18x=0

e)5x²-10x=0

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Answer 1

a) x² - 3x = 0

x (x - 3) = 0

x - 3 = 0

x = 3

b) 3x² + 15x = 0

x (3x + 15) = 0

3x + 15 = 0

3x = -15

x = -15/3

x = -5

c) 2x² - 7x = 0

x (2x - 7) = 0

2x - 7 = 0

2x = 7

x = 7/2

d) 9x² + 18x = 0

x (9x + 18) = 0

9x + 18 = 0

9x = -18

x = -18/9

x = -2

e) 5x² - 10x = 0

x (5x - 10) = 0

5x - 10 = 0

5x = 10

x = 10/5

x = 2

Espero ajudar.