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What does two x squared plus two x minus twelve equals zero equual?
Wiki User
∙ 10y ago
2x2 + 2x - 12 = 0; first factor out 2
2(x2 + x - 6) = 0; since -6 = 3(-2) and 3 + (-2) = 1 factor the trinomial such as
2(x + 3)(x - 2) = 0; let each factor equal to zero
x + 3 = 0; subtract 3 to both sides
x = -3
or
x - 2 = 0 ad 2 to both sides
x = 2
Thus, the solution set is {-3, 2}.
Wiki User
∙ 10y ago
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Without an "equals" word or sign somewhere, there is nothing to solve.You only have an expression, not an equation.
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2
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15
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Without an "equals" word or sign somewhere, there is nothing to solve.You only have an expression, not an equation.
If x squared minus y squared equals 10 and x plus y equals 5 what is x minus y?
2
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What minus twelve equals 3?
15
What are the solutions to x squared minus twelve x plus sixteen equals zero?
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In matrix multipliccation when does A plus B times A minus B equals A squared minus B squared?
All the time
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