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Alexandra [31]
3 years ago
7

Solve the expressions on the left when x=53x-10x^2-155x-21x+10-8​

Mathematics
2 answers:
Nitella [24]3 years ago
5 0

Answer:

5

10

4

7

Step-by-step explanation:

Apply the value of x into the expressions:

3(5) - 10 = 15 - 10

           = 5

5² - 15 = 25 - 15

          = 10

5(5) - 21 = 25 - 21

             = 4

5 + 10 - 8 = 15 - 8

               = 7

emmainna [20.7K]3 years ago
3 0
3x-10:
3(5)-10 = 15-10= 5
The answer is 5

X^2 -15:
(5)^2 -15 = 25-15 = 10
The answer is 10

5x-21:
5(5)-21=25-21=4
The answer is 4

x+10-8:
(5)+10-8=15-8=7
The answer is 7
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