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lys-0071 [83]
2 years ago
11

What are the solutions of the quadratic equation?

Mathematics
2 answers:
Alik [6]2 years ago
7 0

Answer: D. x = 4 or x = -2

The correct answer is x = 4 or x = -2

Step-by-step explanation:

Hope this helps =)

Oliga [24]2 years ago
4 0

Answer:

d)X=4 or x=-2

Step-by-step explanation:

X²-2x=8

X²-2x-8=0

(x-4)(x+2)=0

X-4=0 or x+2=0

X=4 or x=-2

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Step-by-step explanation:

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Let's simplify step-by-step.

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If 2 apple and 5 bananas cost 4.20 dollars and 3 apples and 4 bananas coke 4.So dollars what is the price of a apple and banana
e-lub [12.9K]

Answer:

An apple costs $0.45 and a banana costs $0.66.

Step-by-step explanation:

This question is solved by a system of equations.

I am going to say that:

An apple costs x.

A banana costs y.

2 apple and 5 bananas cost 4.20 dollars

This means that:

2x + 5y = 4.2

So

2x = 4.2 - 5y

x = 2.1 - 2.5y

3 apples and 4 bananas cost 4.

This means that:

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Since x = 2.1 - 2.5y

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6.3 - 7.5y + 4y = 4

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y = \frac{2.3}{3.5}

y = 0.66

Then:

x = 2.1 - 2.5(0.66) = 0.45

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Step-by-step explanation:

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