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vredina [299]
3 years ago
6

Solve the following quadratic equation using the quadratic formula.

Mathematics
2 answers:
exis [7]3 years ago
4 0
5x^2-8x+5=0
ax^2+bx+c=0; a=5, b=-8, c=5
Quadratic Formula:
x=[-b+-sqrt(b^2-4ac)]/(2a)
x=[-(-8)+-sqrt( (-8)^2-4(5)(5) )] / [(2)(5) ]
x=[ 8+-sqrt(64-100)] / 10
x=[ 8+-sqrt(-36)] / 10
x=[8+-sqrt( (36)*(-1)) ] /10
x=[8+-sqrt(36)*sqrt(-1)] / 10
x=(8+-6i) / 10
x=(8/2+-6i/2) / (10/2)
x=(4+-3i)/5
x1=(4-3i)/5
x2=(4+3i)/5

Answers:
x=(4-3i)/5  ,  x=(4+3i)/5
Liula [17]3 years ago
4 0

Answer:

x=\frac{4-3i}{5} x= \frac{4+3i}{5}

Step-by-step explanation:

<em>Follow the quadratic formula</em>

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A coordinator will select 6 songs from a list of 9 songs to compose an event's musical entertainment lineup. How many different
g100num [7]

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Step-by-step explanation:

The order in which the songs are chosen is not important. So we use the combinations formula to solve this question.

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