l. OBJECTIVE:
● Illustrate quadratic equations (M9AL-Ia-1)
II.
A. Direction: Identify which of the following equations are quadratic and which are not. If the equation is
a quadratic, shade in the circle.
1) x + y = 3
2) 3x
²= 0
3) x²- x
2 − 9 + 2 = 0
4) 4x − 2x
² = 0
5) x
² + 6 = x
² − x
6) (x + 2)(x − 1) + 3 = 0
7) x(x + 1)
² = 3
8) (x + 3)(x − 1) = 4x
²
9) - 5 (x + 6) = 3
10) (x − 4)(2x + 5) = (x + 3)
²
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Answer:
1.Not Quadratic
2.Quadratic
3.Quadratic
4.Quadratic
5.Quadratic
6.Quadratic
7.Not Quadratic
8.Not Quadratic
9.Not quadratic
10.Not Quadratic