Question

Put the steps to solve the quadratic equation in order.

Solve: 7x2 - 2x - 5 = 0
X =
2+4-4(7)(-5)
207)
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X =
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+ 12
x = - or 1
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=
27144
14
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a = 7, b = -2, c= -5
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= - 19 or 14
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Answer 1

1.)
`x=(5)/(12)`

2.)
`=28986`

Explanation:

1.)
`\mathrm{Multiply\:the\:numbers:}\:7\cdot \:2=14`,
`14x-2x-5=0.`

`\mathrm{Add\:similar\:elements:}\:14x-2x=12x`
`, 12x-5=0.`

`\mathrm{Add\:}5\mathrm{\:to\:both\:sides}, 12x-5+5=0+5.\\12x=5, \mathrm{Divide\:both\:sides\:by\:}12.\\(12x)/(12)=(5)/(12), x=(5)/(12)`

2.)
`2+4-4\left(7\right)\left(-5\right)\cdot \:207=28986`

`=28986`

3.) ?, I can't read that. Please put it more 'configurative'.