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Aleksandr [31]
3 years ago
9

-2(m + 4) = 40 please help

Mathematics
1 answer:
malfutka [58]3 years ago
3 0
-2(m + 4) = 40
The first step is to use the distributive property to clear the parenthesis
-2 * m + -2* 4 = 40
-2m - 8 = 40
next, to isolate the variable, add 8 to both sides
-2m - 8 + 8 = 40 + 8
-2m = 48
the last step is to get rid of the multiplication by -2 we will divide by -2
(-2m)/-2 = 48/-2
m = -24
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Solving a quadratic equation:

Given a second order polynomial expressed by the following equation:

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In this problem, we have that:

y = 2x^{2} - 9x - 56

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a = 2, b = -9, c = -56

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It is a horizontal distance, so the answer is a positive value.

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