Explanation:
When you’re taking the test, your brain will not just try to recall the specific information you need for the answer, it will pull all of the information available to it, which includes memories of where you were studying when you learned the material.
If 3x² – 2x + 7 = 0, then (x – 1/3)²
Let's work on 3x² – 2x + 7 0
1st divide all element by 3===> x² – 2/3x + 7/3
Let's complete the square of x² – 2/3x + 7/3 = (x² – 2/3x) + 7/3
We will complete the square of the parenthesis (x² – 2/3x) + 7/3
-2/3 x = -2x(time)??. so ??=1/3 & its square = 1/9
(x² – 2/3x) + 7/3 be comes [(x² - 2/3x + 1/9) - 1/9 + 7] = (x-1/3)²- 1/9 +7
(x-1/3)²- 1/9 +7 = (x-1/3)² -1/9 +63/9==>(x-1/3)² + 62/9 or
==>(x-1/3)² + 6.987654321 ===>(x-1/3)² + (≈) 7
