Mathematics, 30.10.2019 07:31 makaleyf19
Eloise started to solve a radical equation in this way: square root of negative 2x plus 1 β 3 = x square root of negative 2x plus 1 β 3 + 3 = x + 3 square root of negative 2x plus 1 = x + 3 square root of negative 2x plus 1 β 1 = x + 3 β 1 square root of negative 2 x = x + 2 (square root of negative 2 x)2 = (x β 4)2 β2x = x2 β 8x + 16 β2x + 2x = x2 + 8x + 16 + 2x 0 = x2 + 10x + 16 0 = (x + 2)(x + 8) x + 2 = 0 x + 8 = 0 x + 2 β 2 = 0 β 2 x + 8 β 8 = 0 β 8 x = β2 x = β8 both solutions are extraneous because they don't satisfy the original equation. what error did eloise make?
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Mathematics, 21.06.2019 17:30
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God's gym charges a sign-up fee of $100 plus $30 per month. write an expression to represent how much someone would pay for a membership.
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Eloise started to solve a radical equation in this way: square root of negative 2x plus 1 β 3 = x s...
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