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atroni [7]
3 years ago
11

Help with this worksheet

Mathematics
1 answer:
rusak2 [61]3 years ago
3 0
3. find the cross products
4. solve for x

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e-lub [12.9K]

Answer:

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3 years ago
Complete the square on the following quadratic x2+10x+9=0
kakasveta [241]
Given a quadratic equation x^{2} +ax+c=0

1. the first thing we do when we want to compete the square, is write the coefficient of x as 2 times a number.

In our case the coefficient of x is 10, so we write 10 as 2*5

2. then we write + 5^{2} and - 5^{2} to the expression:

x^{2} +2*5*x+ 5^{2} -5^{2}+9=0

(x^{2} +2*5*x+ 5^{2}) -25+9=0

(x+5)^{2}-16=0



Answer: (x+5)^{2}-16=0
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3 years ago
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Ann [662]

Answer:

14

Step-by-step explanation:

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4 0
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Mkey [24]

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55

Step-by-step explanation:

The absolute value of -30 is 30 and the absolute value of 25 is 25.

So you will end up with 30 + 25 which is 55.

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Whats the square root of 42​
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6.48....

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Read 2 more answers
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