Question

Which of the following are solutions to the question below? Check all that apply.

6x^2-2x+36=5x^2+10x
A. -4
B. -3
C. 4
D. 6
E. -6
F. 18

Answer 1

D

Explanation:

Given

6x² - 2x + 36 = 5x² + 10x ( subtract 5x² + 10x from both sides )

x² - 12x + 36 = 0 ← in standard form

(x - 6)² = 0 ← in factored form, thus

x - 6 = 0 ⇒ x = 6 → D