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Subjects>Math>Basic Math

How do you factor and solve 2x squared -x equals 21?

Updated: 4/28/2022

Wiki User

∙ 9y ago

Best Answer

2x2 - x = 21

Subtract 21 from each side . . 2x2 - x - 21 = 0

Factor the left side . . . . . . . . (2x - 7) ( x + 3) = 0

If (2x - 7 = 0), then . . . . . x = 3.5

If (x + 3 = 0), then . . . . . x = - 3

Wiki User

∙ 14y ago

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More answers

Wiki User

∙ 9y ago

(2x - 7)(x + 3)

x = 3.5, -3

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