Question

X^2 + bx - 4 = 0?
What is b equal to?

Answer 1

`\mathfrak{ x ^ { 2 } + b x - 4 = 0}`

`\mathfrak{bx-4=-x^(2) }`

`\mathfrak{bx=-x^(2)+4 }`

`\mathfrak{xb=4-x^(2) }`

`\mathfrak{(xb)/(x)=(4-x^(2))/(x) }`

`\mathfrak{ b=(4-x^(2))/(x) }`

`\mathfrak{b=-x+(4)/(x) }`

AnSwEr

`\boxed{\mathfrak{b=-x+(4)/(x),x\\eq 0 } }`

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