Question

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a) x² + 5x + 6 = 0
b) 2x² - 12x = 0
c) x² - 16 = 0
d) 2x² + 3x - 14 = 0 ​

Answer 1

A) ) x² + 5x + 6 = 0

a=1

b=5

c=6

-5+ ✓5^2-4.1.6

x=

2.1

X= -2

X= -3

B) 2x^2 - 12.x=0

2(X^2 - 6)=0

X=6

X=0

C) x² - 16 = 0

a=1

b=0

c=-16

-0+ ✓0^2-4.1 (-16)

x=

2.1

X=4

X= -4