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  • 02-06-2020
  • Mathematics
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What are the solutions to the equation x2 + 6 x = 40

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merue
merue merue
  • 02-06-2020

Answer:

x=4 or x=-10

Step-by-step explanation:

x² + 6x = 40

x² + 6x - 40 = 40 - 40

x² + 6x - 40 = 0

Use quadratic formula:[tex]\frac{b-+\sqrt{b^{2} -4ac} }{2a}[/tex]

a=1 , b=6 , c= -40

[tex]\frac{-(6)-+\sqrt{6^{2} -4.1.(-40)} }{2.1}[/tex]

[tex]\frac{-(6)-+\sqrt{196} }{2.1}[/tex]

x=4 or x=-10

Hope this helps ^-^

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