Question 5(Multiple Choice Worth 5 points)
1 answer:
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Hallo ^_^
Quadratic Equation :
ax² + bx + c = 0
From the task :
x² + 1/20 x = 1/20
Switch sides :
x² + 1/20x - 1/20 = 0
Multiple each sides by 20
20(x² + 1/20x - 1/20) = 0(20)
⇒ 20x² + x - 1 = 0
From that :
a = 20, b = 1 and c = - 1
Solve x using quadratic formula :
Substitution using the formula :
Sorry for my bad english :)
Quadratic Equation :
ax² + bx + c = 0
From the task :
x² + 1/20 x = 1/20
Switch sides :
x² + 1/20x - 1/20 = 0
Multiple each sides by 20
20(x² + 1/20x - 1/20) = 0(20)
⇒ 20x² + x - 1 = 0
From that :
a = 20, b = 1 and c = - 1
Solve x using quadratic formula :
Substitution using the formula :
Sorry for my bad english :)