Question

What are the solutions to the equation x2 + 6 x = 40

Answer 1

x=4 or x=-10

Explanation:

x² + 6x = 40

x² + 6x - 40 = 40 - 40

x² + 6x - 40 = 0

Use quadratic formula:
`\frac{b-+\sqrt{b^(2) -4ac} }{2a}`

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

`\frac{-(6)-+\sqrt{6^(2) -4.1.(-40)} }{2.1}`

`(-(6)-+√(196) )/(2.1)`

x=4 or x=-10

Hope this helps ^-^