Answer:
Below
Step-by-step explanation:
● 2x^2 + 8x - 5 = 0
This is a quadratic equation
● a = 2
● b = 8
● c = -5
The quadratic formula is b^2 -4ac
● b^2 - 4ac
● 8^2 - 4 (2) (-5)
● 104
This is a positive value so the equation two solutions x' and x"
√104 is approximatively 10
● x' = (-b -√104)/2a = (-8-10)/4 = -4.5
● x" = (-b + √104)/2a = (-8+10)/4 = 0.5
The solutions are 0.5 and -4.5
