Evaluate the expression 2x^2 - x, when x = -3. Show all steps.
2 answers:
Answer:
21
Step-by-step explanation:
2x² - x
2(-3)² - (-3)
2(9) + 3
18 + 3
21
Answer:
21
Step-by-step explanation:
This is a substitution question,we are to substitute a given value in place of a certain letter
So let's solve
2x^2-x
And since x is given to be -3
So let's substitute
2(-3)^2-(-3)
2(9)-(-3)
18+3
21
So the final answer is 21
You might be interested in
Answer:
Ok Ill do it in comments
Step-by-step explanation:
Answer:
100
Step-by-step explanation:
5×4=20
5×15=100
therefore 15 cups of flour can make 100 biscuits
Assist
The answer should be Assist
Let me know if the answer is wrong and i'll correct it
Answer:
B. 100
Step-by-step explanation:
143-13=130
10x=130 divide both sides by 10 130/10= 13 x=13
MN=7(13)=91+9=100
LN=3(13)=39+4=43
100+43
Answer:
- 18-24x
Step-by-step explanation:
pls give brainly if its correct
