Question

What is a, b, and c in this quadratic equation?

8x2−19x=89



a=8, b=19, c=89

a=8, b=−19, c=89

a=8, b=19, c=−89

a=8, b=−19, c=−89

Answer 1

a = 8, b = −19, c = −89

Explanation:

The quadratic equation:

`ax^2+bx+c=0`

We have:

`8x^2-19x=89` subtract 89 from both sides

`8x^2-19x-89=0`

`8x^2+(-19)x+(-89)=0`

Therefore:

`a=8\\b=-19\\c=-89`