Question

For 2x²+5=−x, choose the correct values of a, b, and c that you would substitute into a quadratic formula.

a) a=2, b=1, c=5

b) a=2, b=5, c=−1

c) a=1, b=−5, c=−2

d) a=−2, b=5, c=1

Answer 1

The correct values of a, b, and c to substitute into the quadratic formula are a=2, b=1, c=5.

Step-by-step explanation:

In this case, a = 1, b = 0.0211, and c = -0.0211. Substituting the appropriate values for a, b, and c into the quadratic formula:

x = (-b ± √(b^2 - 4ac)) / (2a)

we get:

x = (-0.0211 ± √(0.0211)^2 - 4(1)(-0.0211)) / (2(1))

Simplifying further, we have:

x = (-0.0211 ± √(0.00044521 + 0.08484)) / 2

x = (-0.0211 ± √0.08528521) / 2

Hence, the correct values of a, b, and c are a) a=2, b=1, c=5.