3 years ago

Solve using the quadratic formula: (Standard form 1st!) 2x^2-2x=24

Mathematics

1 answer:

Flura [38]3 years ago

5 0

Answer:

4, -3

Step-by-step explanation:

The quadratic formula is $\frac{-b+-\sqrt{b^2-4ac} }{2a}$ .

When using the formula for both the negative and positive value of the sqrt, you will get:

x = 4, -3

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Sedbober [7]

Answer:

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3. 48

Step-by-step explanation:

1. Since it is 3 dogs to 1 person we need to multiply 6 with 3, so we get 18 dogs!

2. Since 2 books equal 8.25, we just need to multiply 8.25 by 6, which we get 49.5 from!

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A football field is 100 yards long. How many feet is this?

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Solve by using tables. Give each answer to at most two decimal places. –2x2 – 4 = –8x (1 point) 0.59, 3.41 –3.41, –0.59 1.17, 6.

GenaCL600 [577]

Answer:

x=3.414 and x=0.59 is the desired answer.

Step-by-step explanation:

We are given a quadratic equation as : $-2x^2-4=-8x\\=> 2x^2-8x+4=0$

on dividing both side by 2 we have the equation as

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on solving for the roots of the equation using the quadratic formula we get that $x=2\pm \sqrt{2}$

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shepuryov [24]

X= 5
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