I will mark brainliest and heart thanks your answer. Write each quadratic equation in standard form, ax²+ bx + c = 0. Then identify the values of a, b, and c.

1. 2x² + 7x + 3 = 0

2. 5x²- 8x = 9

3. 5x - 4x² = 6

4. X² = 16

5. 10x² + 15x² = 0

6. 3x(x - 6) = 15

7. (x + 7)(x + 2) = 0

8. (2× + 3)(x - 5)= 7

9. (x + 4)(x - 4) = -5x

10. (x - 2)² + 10 = 0

No stupid answer or else I report you!!!

1. x=−1/2,−3

2.  x=4+√61/5,4−√61/5

3.x=5+i√71/8,5−i√71/8

4. X=4,−4

5.x=0

30 miles

step-by-step explanation:

we know that 60 seconds equals 1 minute and 60 minutes 1 hour

44 ft       60 sec     60 min     158400   ft

  *   *   =

1 sec       1 min       1 hour         hour

we know that there are 5280 ft per mile

158400   ft       1 mile         30 miles

  *   =

1   hour               5280 ft     1 hour

so in 1 hour   it can travel 30 miles