Yvonne is solving the quadratic equation 6x2 + 24x + 7 = 0 by completing the square. her first four steps are shown in the table. in which step did yvonne first make an error?

step 1
step 2
step 3
step 4

we have

step

Group terms that contain the same variable, and move the constant to the opposite side of the equation

-------> Yvonne first error( She added on one side and subtracted on the other)

step

Factor the leading coefficient

step

Complete the square. Remember to balance the equation by adding the same constants to each side

step

Rewrite as perfect squares

therefore

the answer is

Step 1

answer:

it will cost 480 dollars to refurbish the larger wood floor

step-by-step explanation:

as it's a ratio of 4 that costs 384 dollars, divide the price by the ratio

384 / 4 = 96 dollars

96 dollars per unit of the ratio

now to get the price to refurbish the larger wood floor, times the price by the units

96 * 5 = 480

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step-by-step explanation:

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