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Taya2010 [7]
4 years ago
11

Solve for x. 12 = x^2 + 6x

Mathematics
1 answer:
DaniilM [7]4 years ago
7 0

Answer: x= 1.6 and -7.6

Step-by-step explanation:

Given the equation 12 = x²+6x

Firstly, we will equate the equation to zero by taking 12 to other side to give;

x²+6x-12 = 0

Using the general formula to solve

If ax²+bx+c=0

x = -b+-√b²-4ac/2a

From the equation given

a = 1 b =6, c=-12

x = -6+-√6²-4(1)(-12)/2(1)

x = -6+-√37+48/2

x = -6+-√85/2

x = -6+-9.2/2

x = -6+9.2/2 and -6-9.2/2

x = 3.2/2 and -15.2/2

x = 1.6 and -7.6

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