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Y_Kistochka [10]
3 years ago
13

How to use the proper formula

Mathematics
2 answers:
mrs_skeptik [129]3 years ago
4 0
Just plugin -3 where the x is in 2x^2 - x
f(-3) = 2x^2 - x
f(-3) = 2(-3)^2 - (-3)
f(-3) = 2(9) - (-3)
f(-3)= 18 - (-3)
f(-3) = 21
21 <------The answer

Elis [28]3 years ago
3 0
21 is the answer
thanks (:
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Someone help pls:( !!!!!!!!!!
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Step-by-step explanation:

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Solve the following simultaneous equations : with the help of steps<br>1. x + 2y = 1, 3x - y = 17​
IRISSAK [1]

Answer:

x = 5, y = -2

Step-by-step explanation:

<u>Given equations:</u>

  • x + 2y = 1
  • 3x - y = 17​

<u>From the first equation we get:</u>

  • x = 1 -2y

<u>Substitute x in the second equation, find y:</u>

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3 years ago
Which number would make this number sentence true?
nlexa [21]

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4 0
3 years ago
Read 2 more answers
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