Question

2. Find the roots of the quadratic equation 2x+ - 3x - 5 = 0, if they exist
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Answer 1

Answer:

2x²- 3x - 5 = 0

D = b² - 4ac

D = 9 - 4(2)(-5)

D = 9+40

D = 49

as D is positive so this equation has real and distinct roots and they exists

x =( -b plus minus √D)/2a

x = (3 + √49)/4. x = (3-√49)/4

x = (3+7)/4. x = (3-7)/4

x = 5/2. x = -4/4 = -1

thus the roots of this equation are 5/2 and -1

Answer 2

Answer:

Step-by-step explanation: