Question

HELP ASAP PLZ

what values of a, b, and c would you use in the quadratic formula for the following equation? 5x^2+9x=4

1. a=-4,b=9,c=5
2.a=5,b=9,c=-4
3.a=5,b=-4,c=9
4.a=5,b=9,c=4

Answer 1

2.

a = 5, b = 9, c = -4

This is because the equation should be equal to zero before finding the terms.

Answer 2

The standard form is given by :

`ax^(2) +bx +c=0`

So we have to convert given equation in this form by bringing all terms to one side and making 0 on the other side.

`5x^(2) +9x=4`

Now we have to bring 4 to the left side,

subtracting 4 on the left,

`5x^(2) +9x-4=0`

Comparing our equation with standard form,

Answer : a=5, b=9 and c=-4 ( second option is right )