Question

1 2 3 4 5 6 7 8 9 10 time remaining 56:51 what are the solutions to the quadratic equation 4x2 = 64? x = ?16 and x = 16 x = ?8 and x = 8 x = ?4 and x = 4 x = ?2 and x = 2

Answer 1

x = ± 4

Explanation:

4x² = 64 ( divide both sides by 4 )

x² = 16 ( take square root of both sides )

x = ±
`√(16)` = ± 4

solutions are x = - 4 and x = 4