Question

What is the solution set for the open sentence with the given replacement set? X2 + 12 = 8x, { 2, 4, 5, 8}

Answer 1

Answer:

x = 2

Step-by-step explanation:

x² + 12 = 8x ( subtract 8x from both sides )

x² - 8x + 12 = 0 ← in standard form

(x - 2)(x - 6) = 0 ← in factored form

Equate each factor to zero and solve for x

x - 2 = 0 ⇒ x = 2

x - 6 = 0 ⇒ x = 6

Given that the solution has to ∈ { 2, 4, 5, 8 } , then

solution is x = 2

Answer 2

Answer:

2

Step-by-step explanation: