Answer:
2x^2 + 3x + 2
Step-by-step explanation:
Like terms must have exactly the same variables and exponents on the variables.
2x^2 is not a like term to any other term, so it cannot be combined.
3x is not a like term to any other term, so it cannot be combined.
3 and -1 have no variable, so they are like terms and can be combined.
2x^2 + 3 + 3x - 1 =
= 2x^2 + 3x + 3 - 1
= 2x^2 + 3x + 2
Answer:
−40 < 5 over 9 (F − 32) < 125; −40 < F < 257
Answer:
-2 and 20
Step-by-step explanation:
20 x (-2) = -40
20 + (-2) = 18
Answer:
9/20
Step-by-step explanation:
45%
Change to a decimal
.45
Change to a fraction
45/100
Divide the top and bottom by 5
9/20
Answer:
4.90005 × 105
Step-by-step explanation:
I wasn't too sure what you meant but I hope this helps