Mathematics, 22.05.2020 20:02 KittyLoverCat

Question 3
A student solved a quadratic equation as shown here:
2x2 + 5x = 12
x(2x + 5) = 12
x= 12or 2x + 5 = 12
2x
x= 12or 2x + 5 - 5 = 12 - 5
x= 12or 2x = 7
x= 12or x=7/2 <--supposed to be fraction
X = 7/2,12
Explain the errors in the process. Then correct the errors, and solve the equation.

Answers: 1

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Question 3
A student solved a quadratic equation as shown here:
2x2 + 5x = 12
x(2x +...