A student solved a quadratic equation as shown here.
2x2 + 5x = 12
x(2x+5) = 12
x=...
Mathematics, 03.05.2020 13:30 carolinasoto
A student solved a quadratic equation as shown here.
2x2 + 5x = 12
x(2x+5) = 12
x= 12or 2x + 5 = 12
x= 12or 2x + 5 - 5 = 12 - 5
X
x= 12or 2x = 7
x = 120r x = {
x= }, 12
Explain the errors in the process. Then correct the errors, and solve the equation.
Answers: 2
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