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fomenos
3 years ago
10

What are the solving steps and two

Mathematics
2 answers:
Pepsi [2]3 years ago
5 0

Answer:

-x² - 10x -21 = 0

x² +10x +21 = 0

x² + 7x + 3x + 21 = 0

x ( x+7) + 3 (x+7) = 0

(x+3) (x+7) = 0

when (x+3) = 0,

   x = -3

Again,

(x+7) = 0

x = -7

konstantin123 [22]3 years ago
5 0

Answer:

7 and 3

Step-by-step explanation:

-b +/- sqrt(b^2+4ac)/2a

10 +/- sqrt(100-84)/2

10 +/- 4/2

7 and 3

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The expression 7z-9p+9z-z
nika2105 [10]

Answer:

15z - 9p

Step-by-step explanation:

7z - 9p + 9z - z

=7z - 9p +8z

= -9p + 15z or 15z - 9p Answer

Hope this helps!

4 0
4 years ago
HELP FAST giving 5 stars
Murrr4er [49]

Answer:

The red is 1/3 and yellow is 1/4

Step-by-step explanation:

there are 3 colors and 1 of them is red so 1/3 same goes to the yellow 4 colors and  is 1 yellow so 1/4

3 0
3 years ago
Mike earned $11.76 per hour for working 23.5 hours last week. how much money did mike earn last week?
densk [106]
Just multiply.

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3 years ago
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20 grams will be left
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What is the markdown from $90 to $75?
love history [14]

Answer:

$15.

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