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Identify if it is Quadratic or Not if its Quadratic find the value of a,b,c

1. 3m + 8 = 15

2. x² - 5x + 10 = 0

3. 12 - 4x = 0

4. 2 +² - 7t = 12

5. 6 - 2x + 3x² = 0

6. 25 - r² = 4r

7. 3x (x - 2) = 7

8. ½ (h - 6) = 0

9. (x + 2)² =0

10. (w - 8) ( w + 5)​


Sagot :

Answer:

1. 3m + 8 = 15:

Not Quadratic.

2. x² - 5x + 10 = 0:

Quadratic. The values are a=1, b=-5, c=10.

3. 12 - 4x = 0:

Not Quadratic.

4. 2 +² - 7t = 12:

This seems to have a typo. Assuming it's 2t² - 7t = 12, then it is

Quadratic.

5. 6 - 2x + 3x² = 0:

Quadratic. The values are a=3, b=-2, c=6.

6. 25 - r² = 4r:

Quadratic. The values are a=-1, b=4, c=-25.

7. 3x (x - 2) = 7:

Quadratic. When expanded, it becomes 3x² - 6x - 7 = 0.

8. ½ (h - 6) = 0:

Not Quadratic.

9. (x + 2)² = 0:

Quadratic. When expanded, it becomes

x² + 4x + 4 = 0.

10. (w - 8) (w + 5):

Not Quadratic.

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