Question

Determine the number of real solutions of -5x² + 8x = 9 The equation has how many real solution(s).​

Answer 1

0 real solutions

Explanation:

discriminant : b^2-4ac

in this case, rearrange the quadratic to get -5x^2 + 8x - 9 = 0.

the discriminant is 8^2-4(-9)(-5)=64-180=-116

negative so 0 real solutions