Question

solve Following quadratic equation 3 m2 +2m-7-0,​

Answer 1

Answer:

1.23, 1.896

Step-by-step explanation:

3m²+2m-7=0

by comparing ax²+bx+c=0

here a=3,b=2,c=(-7)

Discriminant(D)= b²-4ac

= 2²-4(3)(-7)

= 4+84

= 88

Now by quadratic formula-

-b + √b²-4ac

x= -----------------

2a

= -2 + √88

----------

2(3)

= -2+ √88 -2- √88

------------ , ------------

6. 6

= -2+9.38. -2-9.38

---------- , ------------

6. 6

= 7.38. -11.38

------ ' -------

6. 6

= 1.23 , 1.896