Answer:
-296=2×2+20×-15that is the answer
Step-by-step explanation:
you need to calculate the equation step by step to get to the answer
<h2>Using the quadratic formula</h2>
The quadratic formula can help us solve for x in a quadratic equation:

We can use this when the given equation is organized in standard form: 
<h3>Applying this to the problem</h3>

First we can identify the values of a, b and c:
a = 2
b = 5
c = -4
Plug these values into the quadratic formula:




<h2>Answer</h2>
Therefore, the two possible values of x are:


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Answer:
15
Step-by-step explanation:
2(a+b)=2a+2b
Multiply each individual number in the parentheses by the number outside of it