Question

Solve 3q square = 2q + 8using formula
method​

Answer 1

3q2 = 2q + 8

Solution:

3q2 = 2q + 8 3q2 – 2q – 8 = 0

Comparing with aq2 + bq + c = 0

we have a = 3, b = – 2, c = – 8b2 – 4ac = (– 2)2 – 4 (3) (– 8)= 4 + 96= 100By Formula method,after this written in photo

Answer 2

Answer:

2 and -4/3

Step-by-step explanation:

3q2 = 2q + 8

3q2 – 2q – 8 = 0

Comparing with aq2 + bq + c = 0 we have a = 3, b = – 2, c = – 8

b2 – 4ac = (– 2)2 – 4 (3) (– 8)

= 4 + 96

= 100

By Formula method,

q

=

- b ± √(b2 – 4ac)

2a

∴ q

=

-(-2) ± √100

2(3)

∴ q

=

2 ±10

6

∴ q

=

2 ± 10

6

∴ q

=

2 + 10

or

2 – 10

6

6

∴ q

=

12

or

-8

6

6

∴ q

=

2

or

-4/3