Question

Find the roots of the equation below.
7^x2 + 3 = 8x​

Answer 1

x =
`(4)/(7)`

Explanation:

7x² + 3 = 8x

7x² - 8x + 3 = 0

Applying the quadratic formula;

x = (8 ±
`√(64 - 64)`) ÷ 2(7)

x = (8 ± 0) ÷ 2(7) =
`(4)/(7)`