Question

5. Use any method to solve the equation. If necessary, round to the nearest hundredth.
8x2 - 48 = 0
O 0.41, -0.41
O 6.93, -6.93
O 2.83,-2.83
2.45, -2.45

Answer 1

Answer:

2.45, -2.45

Step-by-step explanation:

Since the equation has only one term in the unknown "x", we can solve for it isolating "x" on one side of the equal sign:

$8x^2-48=0\\8x^2=48\\x^2=\frac{48}{8} \\x^2=6\\x=+/-\sqrt{6} \\x=+/- 2.449$

Which we can round to: x = - 2.45 and x = 2.45