The coefficients in the expression are -1 and 9
<h3>How to determine the coefficients?</h3>
The expression is given as:
-x^2 + 9x
In an expression ax, the coefficient is a.
Using the above as a guide, we have:
-x^2 + 9x
The coefficients in the above expression are -1 and 9
Read more about coefficients at:
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Answer:
the missing number is 18
Step-by-step explanation:
What would you do to 7 to get 21? multiply by 3. you would do the same to the 6.
Answer:
x = 
Step-by-step explanation:
Since you cannot subtract -1 from 4x, you multiply 2 × 4x = 8x
Now, you have 8x - 1 + 3 = 7
Seperate the 8x from the other numbers
8x = 1 - 3 + 7 ---> 6
8x = 6
Now simplify
x =
<----- to reduce, divide the numerator and denominator by 2
Hence,
x = 
9a^3b^4 I think
Not sure...