Solve the expression

label Algebra
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schedule 1 Day
account_balance_wallet $5

x^2-2x+10=0

Nov 12th, 2014

Just eyeballing it: 10 only factors into 2 and 5, which doesn't work too well to get a -2. Guess we're doing the hard way. Were you taught the general solution? [-b +/- sqrt(b^2-4ac)]/2a, where a, b and c are the coefficients.

[-(-2) +/- sqrt((-2)^2-4(1)(10))]/2(1)

The part in the square roots is negative, so this equation has no real solutions.

Nov 12th, 2014

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Nov 12th, 2014
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Nov 12th, 2014
Oct 17th, 2017
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