Answer:
Combine like terms onto one side of the equation
Step-by-step explanation:
You have
-x^2 -4x - 3 = 2x + 5
It seems that we should combine like terms to make this equations smaller.
-x^2 - 4x - 3 - 2x - 5 = 0
-x^2 -6x - 8 = 0
- (x + 2)(x + 4) = 0
x = -2 or x = -4
Answer:
1)=0
2)

3)

4)

5) I don't know that one.
Answer:
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We need to find 15% of 750.
15% * 750.
15/100 * 750
11250/100
112.5
So that means the sale is 112.5 dollars