Question

Using graphing technology, approximate the solutions of 0.64x2 - 0.28x - 4.8 = 0.
Answer
x ≈ -2.62 and x ≈ 2.56
x ≈ -2.53 and x ≈ 2.97
x ≈ -2.78 and x ≈ 2.33
x ≈ -2.61 and x ≈ 2.84

Answer 1

B. \[x \approx -2.53 and 2.97\]
0.28 ± Sq Root ( 0.0784 + 12.288 ) } / 1.28